option to specify dis(activation) of picky compiler warnings.
If option is specified, it will be honored independant of the
--(dis|en)able-debug option.
If option is not specified, it will follow --(dis|en)able-debug
setting, whose default is disabled if not specified.
])
-dnl **********************************************************************
-dnl CURL_DETECT_ICC ([ACTION-IF-YES])
-dnl
-dnl check if this is the Intel ICC compiler, and if so run the ACTION-IF-YES
-dnl sets the $ICC variable to "yes" or "no"
-dnl **********************************************************************
-AC_DEFUN([CURL_DETECT_ICC],
-[
- ICC="no"
- AC_MSG_CHECKING([for icc in use])
- if test "$GCC" = "yes"; then
- dnl check if this is icc acting as gcc in disguise
- AC_EGREP_CPP([^__INTEL_COMPILER], [__INTEL_COMPILER],
- dnl action if the text is found, this it has not been replaced by the
- dnl cpp
- ICC="no",
- dnl the text was not found, it was replaced by the cpp
- ICC="yes"
- AC_MSG_RESULT([yes])
- [$1]
- )
- fi
- if test "$ICC" = "no"; then
- # this is not ICC
- AC_MSG_RESULT([no])
- fi
-])
-
-dnl We create a function for detecting which compiler we use and then set as
-dnl pendantic compiler options as possible for that particular compiler. The
-dnl options are only used for debug-builds.
-
-AC_DEFUN([CURL_CC_DEBUG_OPTS],
-[
- dnl strip off optimizer flags
- NEWFLAGS=""
- for flag in $CFLAGS; do
- case "$flag" in
- -O*)
- dnl echo "cut off $flag"
- ;;
- *)
- NEWFLAGS="$NEWFLAGS $flag"
- ;;
- esac
- done
- CFLAGS=$NEWFLAGS
-]) # AC-DEFUN
-
-
-
# This is only a temporary fix. This macro is here to replace the broken one
# delivered by the automake project (including the 1.9.6 release). As soon as
# they ship a working version we SHOULD remove this work-around.
])
-dnl **********************************************************************
-dnl CURL_DETECT_ICC ([ACTION-IF-YES])
-dnl
-dnl check if this is the Intel ICC compiler, and if so run the ACTION-IF-YES
-dnl sets the $ICC variable to "yes" or "no"
-dnl **********************************************************************
-AC_DEFUN([CURL_DETECT_ICC],
-[
- ICC="no"
- AC_MSG_CHECKING([for icc in use])
- if test "$GCC" = "yes"; then
- dnl check if this is icc acting as gcc in disguise
- AC_EGREP_CPP([^__INTEL_COMPILER], [__INTEL_COMPILER],
- dnl action if the text is found, this it has not been replaced by the
- dnl cpp
- ICC="no",
- dnl the text was not found, it was replaced by the cpp
- ICC="yes"
- AC_MSG_RESULT([yes])
- [$1]
- )
- fi
- if test "$ICC" = "no"; then
- # this is not ICC
- AC_MSG_RESULT([no])
- fi
-])
-
-dnl We create a function for detecting which compiler we use and then set as
-dnl pendantic compiler options as possible for that particular compiler. The
-dnl options are only used for debug-builds.
-
-dnl This is a copy of the original found in curl's configure script. Don't
-dnl modify this one, edit the one in curl and copy it back here when that one
-dnl is changed.
-
-AC_DEFUN([CURL_CC_DEBUG_OPTS],
-[
- dnl strip off optimizer flags
- NEWFLAGS=""
- for flag in $CFLAGS; do
- case "$flag" in
- -O*)
- dnl echo "cut off $flag"
- ;;
- *)
- NEWFLAGS="$NEWFLAGS $flag"
- ;;
- esac
- done
- CFLAGS=$NEWFLAGS
-])
-
-
dnl This macro determines if the specified struct exists in the specified file
dnl Syntax:
dnl CARES_CHECK_STRUCT(headers, struct name, if found, [if not found])
AM_CONFIG_HEADER([config.h])
AM_MAINTAINER_MODE
+CARES_CHECK_OPTION_DEBUG
+CARES_CHECK_OPTION_WARNINGS
+
dnl SED is mandatory for configure process and libtool.
dnl Set it now, allowing it to be changed later.
AC_PATH_PROG([SED], [sed], [not_found],
dnl support building of Windows DLLs
AC_LIBTOOL_WIN32_DLL
-dnl ************************************************************
-dnl Option to switch on debug options. This makes an assumption that
-dnl this is built as an 'ares' subdir in the curl source tree. Subject for
-dnl improval in the future!
-dnl
-AC_MSG_CHECKING([whether to enable debug options])
-AC_ARG_ENABLE(debug,
-AC_HELP_STRING([--enable-debug],[Enable pedantic debug options])
-AC_HELP_STRING([--disable-debug],[Disable debug options]),
-[ case "$enableval" in
- no)
- AC_MSG_RESULT(no)
- ;;
- *) AC_MSG_RESULT(yes)
-
- dnl when doing the debug stuff, use static library only
- AC_DISABLE_SHARED
-
- debugbuild="yes"
-
- dnl the entire --enable-debug is a hack that lives and runs on top of
- dnl libcurl stuff so this BUILDING_LIBCURL is not THAT much uglier
- AC_DEFINE(BUILDING_LIBCURL, 1, [when building as static part of libcurl])
+CARES_PROCESS_DEBUG_BUILD_OPTS
- CPPFLAGS="$CPPFLAGS -DCURLDEBUG -I$srcdir/../include"
- CFLAGS="$CFLAGS -g"
-
- dnl set compiler "debug" options to become more picky, and remove
- dnl optimize options from CFLAGS
- CURL_CC_DEBUG_OPTS
-
- ;;
- esac ],
- AC_MSG_RESULT(no)
-)
-AM_CONDITIONAL(DEBUGBUILD, test x$debugbuild = xyes)
-AM_CONDITIONAL(CURLDEBUG, test x$debugbuild = xyes)
+AM_CONDITIONAL(DEBUGBUILD, test x$want_debug = xyes)
+AM_CONDITIONAL(CURLDEBUG, test x$want_debug = xyes)
dnl skip libtool C++ and Fortran compiler checks
m4_ifdef([AC_PROG_CXX], [m4_undefine([AC_PROG_CXX])])
dnl platform/compiler/architecture specific checks/flags
dnl **********************************************************************
-ac_cv_compiler="unknown"
-ac_cv_compiler_num="unknown"
-
-AC_MSG_CHECKING([whether we are using the IBM C compiler])
-CURL_CHECK_DEF([__IBMC__], [], [silent])
-if test "$curl_cv_have_def___IBMC__" = "yes"; then
- AC_MSG_RESULT([yes])
- ac_cv_compiler="IBMC"
- dnl Ensure that compiler optimizations are always thread-safe.
- CFLAGS="$CFLAGS -qthreaded"
- dnl Disable type based strict aliasing optimizations, using worst
- dnl case aliasing assumptions when compiling. Type based aliasing
- dnl would restrict the lvalues that could be safely used to access
- dnl a data object.
- CFLAGS="$CFLAGS -qnoansialias"
- dnl Force compiler to stop after the compilation phase, without
- dnl generating an object code file when compilation has errors.
- CFLAGS="$CFLAGS -qhalt=e"
-else
- AC_MSG_RESULT([no])
-fi
-
-AC_MSG_CHECKING([whether we are using the Intel C compiler])
-CURL_CHECK_DEF([__INTEL_COMPILER], [], [silent])
-if test "$curl_cv_have_def___INTEL_COMPILER" = "yes"; then
- AC_MSG_RESULT([yes])
- ac_cv_compiler="ICC"
- ac_cv_compiler_num="$curl_cv_def___INTEL_COMPILER"
- dnl On unix this compiler uses gcc's header files, so
- dnl we select ANSI C89 dialect plus GNU extensions.
- CPPFLAGS="$CPPFLAGS -std=gnu89"
- if test "$ac_cv_compiler_num" -gt "600"; then
- dnl Show errors, warnings, and remarks
- CPPFLAGS="$CPPFLAGS -Wall"
- dnl Perform extra compile-time code checking
- CPPFLAGS="$CPPFLAGS -Wcheck"
- fi
- dnl Change some warnings into errors
- dnl #140: too many arguments in function call
- dnl #147: declaration is incompatible with 'previous one'
- dnl #165: too few arguments in function call
- dnl #266: function declared implicitly
- CPPFLAGS="$CPPFLAGS -we 140,147,165,266"
- dnl Disable some remarks
- dnl #279: controlling expression is constant
- dnl #981: operands are evaluated in unspecified order
- dnl #1469: "cc" clobber ignored
- if test "$ac_cv_compiler_num" -lt "910"; then
- CPPFLAGS="$CPPFLAGS -wd 279"
- fi
- CPPFLAGS="$CPPFLAGS -wd 981,1469"
- dnl Disable use of ANSI C aliasing rules in optimizations
- CFLAGS="$CFLAGS -no-ansi-alias"
- dnl Disable floating point optimizations
- CFLAGS="$CFLAGS -fp-model precise -mp"
-else
- AC_MSG_RESULT([no])
-fi
-
-AC_MSG_CHECKING([whether we are using the DEC/Compaq C compiler])
-CURL_CHECK_DEF([__DECC], [], [silent])
-CURL_CHECK_DEF([__DECC_VER], [], [silent])
-if test "$curl_cv_have_def___DECC" = "yes" &&
- test "$curl_cv_have_def___DECC_VER" = "yes"; then
- AC_MSG_RESULT([yes])
- ac_cv_compiler="DECC"
- dnl Select strict ANSI C compiler mode
- CFLAGS="$CFLAGS -std1"
- dnl Turn off optimizer ANSI C aliasing rules
- CFLAGS="$CFLAGS -noansi_alias"
- dnl Select a higher warning level than default level2
- CFLAGS="$CFLAGS -msg_enable level3"
- dnl Generate warnings for missing function prototypes
- CFLAGS="$CFLAGS -warnprotos"
- dnl Change some warnings into fatal errors
- CFLAGS="$CFLAGS -msg_fatal toofewargs,toomanyargs"
-else
- AC_MSG_RESULT([no])
-fi
-
-AC_MSG_CHECKING([whether we are using the GNU C compiler])
-CURL_CHECK_DEF([__GNUC__], [], [silent])
-if test "$curl_cv_have_def___GNUC__" = "yes" &&
- test "$ac_cv_compiler" = "unknown"; then
- AC_MSG_RESULT([yes])
- ac_cv_compiler="GNUC"
- gccver=`$CC -dumpversion`
- gccvhi=`echo $gccver | cut -d . -f1`
- gccvlo=`echo $gccver | cut -d . -f2`
- gccnum=`(expr $gccvhi "*" 100 + $gccvlo) 2>/dev/null`
- ac_cv_compiler_num="$gccnum"
- dnl this is a set of options we believe *ALL* gcc versions support:
- WARN="-W -Wall -Wwrite-strings -pedantic -Wpointer-arith -Wnested-externs -Winline -Wmissing-prototypes"
- dnl -Wcast-align is a bit too annoying on all gcc versions ;-)
- if test "$ac_cv_compiler_num" -ge "207"; then
- dnl gcc 2.7 or later
- WARN="$WARN -Wmissing-declarations"
- fi
- if test "$ac_cv_compiler_num" -gt "295"; then
- dnl only if the compiler is newer than 2.95 since we got lots of
- dnl "`_POSIX_C_SOURCE' is not defined" in system headers with
- dnl gcc 2.95.4 on FreeBSD 4.9!
- WARN="$WARN -Wundef -Wno-long-long -Wsign-compare -Wshadow -Wno-multichar"
- fi
- if test "$ac_cv_compiler_num" -ge "296"; then
- dnl gcc 2.96 or later
- WARN="$WARN -Wfloat-equal"
- fi
- if test "$ac_cv_compiler_num" -gt "296"; then
- dnl this option does not exist in 2.96
- WARN="$WARN -Wno-format-nonliteral"
- fi
- dnl -Wunreachable-code seems totally unreliable on my gcc 3.3.2 on
- dnl on i686-Linux as it gives us heaps with false positives.
- dnl Also, on gcc 4.0.X it is totally unbearable and complains all
- dnl over making it unusable for generic purposes. Let's not use it.
- if test "$ac_cv_compiler_num" -ge "303"; then
- dnl gcc 3.3 and later
- WARN="$WARN -Wendif-labels -Wstrict-prototypes"
- fi
- if test "$ac_cv_compiler_num" -ge "304"; then
- # try these on gcc 3.4
- WARN="$WARN -Wdeclaration-after-statement"
- fi
- for flag in $CPPFLAGS; do
- case "$flag" in
- -I*)
- dnl Include path, provide a -isystem option for the same dir
- dnl to prevent warnings in those dirs. The -isystem was not very
- dnl reliable on earlier gcc versions.
- add=`echo $flag | sed 's/^-I/-isystem /g'`
- WARN="$WARN $add"
- ;;
- esac
- done
- CFLAGS="$CFLAGS $WARN"
- AC_MSG_NOTICE([Added this set of compiler options: $WARN])
-else
- AC_MSG_RESULT([no])
-fi
+CARES_CHECK_COMPILER
+CARES_PROCESS_CC_BASIC_OPTS
+CARES_PROCESS_CC_DEBUG_OPTS
+CARES_PROCESS_CC_WARNING_OPTS
case $host in
#
x86_64*linux*|amd64*freebsd*|ia64*freebsd*)
#
- if test "$ac_cv_compiler" = "ICC"; then
+ if test "$compiler_id" = "ICC_unix"; then
#
- if test "$ac_cv_compiler_num" -ge "900" &&
- test "$ac_cv_compiler_num" -lt "1000"; then
+ if test "$compiler_num" -ge "900" &&
+ test "$compiler_num" -lt "1000"; then
dnl icc 9.X specific
CFLAGS="$CFLAGS -i-dynamic"
fi
#
- if test "$ac_cv_compiler_num" -ge "1000"; then
+ if test "$compiler_num" -ge "1000"; then
dnl icc 10.X or later
CFLAGS="$CFLAGS -shared-intel"
fi
--- /dev/null
+#***************************************************************************
+# $Id$
+#
+# Copyright (C) 2008 by Daniel Stenberg et al
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose and without fee is hereby granted, provided
+# that the above copyright notice appear in all copies and that both that
+# copyright notice and this permission notice appear in supporting
+# documentation, and that the name of M.I.T. not be used in advertising or
+# publicity pertaining to distribution of the software without specific,
+# written prior permission. M.I.T. makes no representations about the
+# suitability of this software for any purpose. It is provided "as is"
+# without express or implied warranty.
+#
+#***************************************************************************
+
+# File version for 'aclocal' use. Keep it a single number.
+# serial 1
+
+
+dnl CARES_CHECK_COMPILER
+dnl -------------------------------------------------
+dnl Verify if the C compiler being used is known.
+
+AC_DEFUN([CARES_CHECK_COMPILER], [
+ #
+ compiler_id="unknown"
+ compiler_num="0"
+ #
+ CARES_CHECK_COMPILER_DEC
+ CARES_CHECK_COMPILER_IBM
+ CARES_CHECK_COMPILER_INTEL
+ CARES_CHECK_COMPILER_GNU
+ #
+])
+
+
+dnl CARES_CHECK_COMPILER_DEC
+dnl -------------------------------------------------
+dnl Verify if the C compiler being used is DEC's.
+
+AC_DEFUN([CARES_CHECK_COMPILER_DEC], [
+ AC_MSG_CHECKING([whether we are using the DEC/Compaq C compiler])
+ CURL_CHECK_DEF([__DECC], [], [silent])
+ CURL_CHECK_DEF([__DECC_VER], [], [silent])
+ if test "$curl_cv_have_def___DECC" = "yes" &&
+ test "$curl_cv_have_def___DECC_VER" = "yes"; then
+ AC_MSG_RESULT([yes])
+ compiler_id="DECC"
+ else
+ AC_MSG_RESULT([no])
+ fi
+])
+
+
+dnl CARES_CHECK_COMPILER_GNU
+dnl -------------------------------------------------
+dnl Verify if the C compiler being used is GNU's.
+
+AC_DEFUN([CARES_CHECK_COMPILER_GNU], [
+ AC_REQUIRE([CARES_CHECK_COMPILER_INTEL])dnl
+ #
+ AC_MSG_CHECKING([whether we are using the GNU C compiler])
+ CURL_CHECK_DEF([__GNUC__], [], [silent])
+ if test "$curl_cv_have_def___GNUC__" = "yes" &&
+ test "$compiler_id" = "unknown"; then
+ AC_MSG_RESULT([yes])
+ compiler_id="GNUC"
+ gccver=`$CC -dumpversion`
+ gccvhi=`echo $gccver | cut -d . -f1`
+ gccvlo=`echo $gccver | cut -d . -f2`
+ compiler_num=`(expr $gccvhi "*" 100 + $gccvlo) 2>/dev/null`
+ else
+ AC_MSG_RESULT([no])
+ fi
+])
+
+
+dnl CARES_CHECK_COMPILER_IBM
+dnl -------------------------------------------------
+dnl Verify if the C compiler being used is IBM's.
+
+AC_DEFUN([CARES_CHECK_COMPILER_IBM], [
+ AC_MSG_CHECKING([whether we are using the IBM C compiler])
+ CURL_CHECK_DEF([__IBMC__], [], [silent])
+ if test "$curl_cv_have_def___IBMC__" = "yes"; then
+ AC_MSG_RESULT([yes])
+ compiler_id="IBMC"
+ else
+ AC_MSG_RESULT([no])
+ fi
+])
+
+
+dnl CARES_CHECK_COMPILER_INTEL
+dnl -------------------------------------------------
+dnl Verify if the C compiler being used is Intel's.
+
+AC_DEFUN([CARES_CHECK_COMPILER_INTEL], [
+ AC_BEFORE([$0],[CARES_CHECK_COMPILER_GNU])dnl
+ AC_MSG_CHECKING([whether we are using the Intel C compiler])
+ CURL_CHECK_DEF([__INTEL_COMPILER], [], [silent])
+ if test "$curl_cv_have_def___INTEL_COMPILER" = "yes"; then
+ AC_MSG_RESULT([yes])
+ CURL_CHECK_DEF([__unix__], [], [silent])
+ if test "$curl_cv_have_def___unix__" = "yes"; then
+ compiler_id="ICC_unix"
+ else
+ compiler_id="ICC_windows"
+ fi
+ compiler_num="$curl_cv_def___INTEL_COMPILER"
+ else
+ AC_MSG_RESULT([no])
+ fi
+])
+
+
+dnl CARES_PROCESS_CC_BASIC_OPTS
+dnl -------------------------------------------------
+dnl Sets compiler options/flags which are independant
+dnl of configure's debug or warnings options.
+
+AC_DEFUN([CARES_PROCESS_CC_BASIC_OPTS], [
+ AC_REQUIRE([CARES_CHECK_COMPILER])dnl
+ #
+ if test "$compiler_id" = "DECC"; then
+ dnl Select strict ANSI C compiler mode
+ CFLAGS="$CFLAGS -std1"
+ dnl Turn off optimizer ANSI C aliasing rules
+ CFLAGS="$CFLAGS -noansi_alias"
+ dnl Generate warnings for missing function prototypes
+ CFLAGS="$CFLAGS -warnprotos"
+ dnl Change some warnings into fatal errors
+ CFLAGS="$CFLAGS -msg_fatal toofewargs,toomanyargs"
+ fi
+ #
+ if test "$compiler_id" = "IBMC"; then
+ dnl Ensure that compiler optimizations are always thread-safe.
+ CFLAGS="$CFLAGS -qthreaded"
+ dnl Disable type based strict aliasing optimizations, using worst
+ dnl case aliasing assumptions when compiling. Type based aliasing
+ dnl would restrict the lvalues that could be safely used to access
+ dnl a data object.
+ CFLAGS="$CFLAGS -qnoansialias"
+ dnl Force compiler to stop after the compilation phase, without
+ dnl generating an object code file when compilation has errors.
+ CFLAGS="$CFLAGS -qhalt=e"
+ fi
+ #
+ if test "$compiler_id" = "ICC_unix"; then
+ dnl On unix this compiler uses gcc's header files, so
+ dnl we select ANSI C89 dialect plus GNU extensions.
+ CPPFLAGS="$CPPFLAGS -std=gnu89"
+ dnl Change some warnings into errors
+ dnl #140: too many arguments in function call
+ dnl #147: declaration is incompatible with 'previous one'
+ dnl #165: too few arguments in function call
+ dnl #266: function declared implicitly
+ CPPFLAGS="$CPPFLAGS -we 140,147,165,266"
+ dnl Disable some remarks
+ dnl #279: controlling expression is constant
+ dnl #981: operands are evaluated in unspecified order
+ dnl #1469: "cc" clobber ignored
+ if test "$compiler_num" -lt "910"; then
+ CPPFLAGS="$CPPFLAGS -wd 279"
+ fi
+ CPPFLAGS="$CPPFLAGS -wd 981,1469"
+ dnl Disable use of ANSI C aliasing rules in optimizations
+ CFLAGS="$CFLAGS -no-ansi-alias"
+ dnl Disable floating point optimizations
+ CFLAGS="$CFLAGS -fp-model precise"
+ fi
+])
+
+
+dnl CARES_PROCESS_CC_DEBUG_OPTS
+dnl -------------------------------------------------
+dnl Sets compiler options/flags and other settings
+dnl which depend on configure's debug given option.
+
+AC_DEFUN([CARES_PROCESS_CC_DEBUG_OPTS], [
+ AC_REQUIRE([CARES_CHECK_OPTION_DEBUG])dnl
+ AC_REQUIRE([CARES_CHECK_COMPILER])dnl
+ #
+ if test "$want_debug" = "yes"; then
+ CFLAGS="$CFLAGS -g"
+ fi
+ #
+ if test "$want_debug" = "no"; then
+ dnl strip off optimizer flags
+ NEWFLAGS=""
+ for flag in $CFLAGS; do
+ case "$flag" in
+ -O*)
+ dnl echo "cut off $flag"
+ ;;
+ *)
+ NEWFLAGS="$NEWFLAGS $flag"
+ ;;
+ esac
+ done
+ CFLAGS=$NEWFLAGS
+ fi
+ #
+])
+
+
+dnl CARES_PROCESS_CC_WARNING_OPTS
+dnl -------------------------------------------------
+dnl Sets compiler options/flags which depend on
+dnl configure's warnings given option.
+
+AC_DEFUN([CARES_PROCESS_CC_WARNING_OPTS], [
+ AC_REQUIRE([CARES_CHECK_OPTION_WARNINGS])dnl
+ AC_REQUIRE([CARES_CHECK_COMPILER])dnl
+ #
+ if test "$compiler_id" = "DECC"; then
+ if test "$want_warnings" = "yes"; then
+ dnl Select a higher warning level than default level2
+ CFLAGS="$CFLAGS -msg_enable level3"
+ fi
+ fi
+ #
+ if test "$compiler_id" = "ICC_unix"; then
+ if test "$want_warnings" = "yes"; then
+ if test "$compiler_num" -gt "600"; then
+ dnl Show errors, warnings, and remarks
+ CPPFLAGS="$CPPFLAGS -Wall"
+ dnl Perform extra compile-time code checking
+ CPPFLAGS="$CPPFLAGS -Wcheck"
+ fi
+ fi
+ fi
+ #
+ if test "$compiler_id" = "GNUC"; then
+ #
+ # FIXME: Some of these warnings should be changed into errors
+ # and moved to CARES-PROCESS-CC-BASIC-OPTS
+ #
+ if test "$want_warnings" = "yes"; then
+ dnl this is a set of options we believe *ALL* gcc versions support:
+ WARN="-W -Wall -Wwrite-strings -pedantic -Wpointer-arith -Wnested-externs -Winline -Wmissing-prototypes"
+ dnl -Wcast-align is a bit too annoying on all gcc versions ;-)
+ if test "$compiler_num" -ge "207"; then
+ dnl gcc 2.7 or later
+ WARN="$WARN -Wmissing-declarations"
+ fi
+ if test "$compiler_num" -gt "295"; then
+ dnl only if the compiler is newer than 2.95 since we got lots of
+ dnl "`_POSIX_C_SOURCE' is not defined" in system headers with
+ dnl gcc 2.95.4 on FreeBSD 4.9!
+ WARN="$WARN -Wundef -Wno-long-long -Wsign-compare -Wshadow -Wno-multichar"
+ fi
+ if test "$compiler_num" -ge "296"; then
+ dnl gcc 2.96 or later
+ WARN="$WARN -Wfloat-equal"
+ fi
+ if test "$compiler_num" -gt "296"; then
+ dnl this option does not exist in 2.96
+ WARN="$WARN -Wno-format-nonliteral"
+ fi
+ dnl -Wunreachable-code seems totally unreliable on my gcc 3.3.2 on
+ dnl on i686-Linux as it gives us heaps with false positives.
+ dnl Also, on gcc 4.0.X it is totally unbearable and complains all
+ dnl over making it unusable for generic purposes. Let's not use it.
+ if test "$compiler_num" -ge "303"; then
+ dnl gcc 3.3 and later
+ WARN="$WARN -Wendif-labels -Wstrict-prototypes"
+ fi
+ if test "$compiler_num" -ge "304"; then
+ # try these on gcc 3.4
+ WARN="$WARN -Wdeclaration-after-statement"
+ fi
+ for flag in $CPPFLAGS; do
+ case "$flag" in
+ -I*)
+ dnl Include path, provide a -isystem option for the same dir
+ dnl to prevent warnings in those dirs. The -isystem was not very
+ dnl reliable on earlier gcc versions.
+ add=`echo $flag | sed 's/^-I/-isystem /g'`
+ WARN="$WARN $add"
+ ;;
+ esac
+ done
+ CFLAGS="$CFLAGS $WARN"
+ AC_MSG_NOTICE([Added this set of compiler options: $WARN])
+ fi
+ fi
+ #
+])
+
+
+dnl CARES_PROCESS_DEBUG_BUILD_OPTS
+dnl -------------------------------------------------
+dnl Settings which depend on configure's debug given
+dnl option, and further configure the build process.
+
+AC_DEFUN([CARES_PROCESS_DEBUG_BUILD_OPTS], [
+ AC_REQUIRE([CARES_CHECK_OPTION_DEBUG])dnl
+ AC_BEFORE([$0],[AC_PROG_LIBTOOL])dnl
+ #
+ if test "$want_debug" = "yes"; then
+
+ dnl when doing the debug stuff, use static library only
+ AC_DISABLE_SHARED
+
+ debugbuild="yes"
+
+ dnl the entire --enable-debug is a hack that lives and runs on top of
+ dnl libcurl stuff so this BUILDING_LIBCURL is not THAT much uglier
+ AC_DEFINE(BUILDING_LIBCURL, 1, [when building as static part of libcurl])
+
+ CPPFLAGS="$CPPFLAGS -DCURLDEBUG -I$srcdir/../include"
+ fi
+ #
+])
+
+
--- /dev/null
+#***************************************************************************
+# $Id$
+#
+# Copyright (C) 2008 by Daniel Stenberg et al
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose and without fee is hereby granted, provided
+# that the above copyright notice appear in all copies and that both that
+# copyright notice and this permission notice appear in supporting
+# documentation, and that the name of M.I.T. not be used in advertising or
+# publicity pertaining to distribution of the software without specific,
+# written prior permission. M.I.T. makes no representations about the
+# suitability of this software for any purpose. It is provided "as is"
+# without express or implied warranty.
+#
+#***************************************************************************
+
+# File version for 'aclocal' use. Keep it a single number.
+# serial 1
+
+
+dnl CARES_CHECK_OPTION_DEBUG
+dnl -------------------------------------------------
+dnl Verify if configure has been invoked with option
+dnl --enable-debug or --disable-debug, and set shell
+dnl variable want_debug value as appropriate.
+
+AC_DEFUN([CARES_CHECK_OPTION_DEBUG], [
+ AC_BEFORE([$0],[CARES_CHECK_OPTION_WARNINGS])dnl
+ AC_BEFORE([$0],[AC_PROG_CC])dnl
+ AC_MSG_CHECKING([whether to enable debug build options])
+ OPT_DEBUG_BUILD="default"
+ AC_ARG_ENABLE(debug,
+ AC_HELP_STRING([--enable-debug],[Enable debug build options])
+ AC_HELP_STRING([--disable-debug],[Disable debug build options]),
+ OPT_DEBUG_BUILD=$enableval)
+ case "$OPT_DEBUG_BUILD" in
+ no)
+ dnl --disable-debug option used
+ want_debug="no"
+ ;;
+ default)
+ dnl configure option not specified
+ want_debug="no"
+ ;;
+ *)
+ dnl --enable-debug option used
+ want_debug="yes"
+ ;;
+ esac
+ AC_MSG_RESULT([$want_debug])
+])
+
+
+dnl CARES_CHECK_OPTION_WARNINGS
+dnl -------------------------------------------------
+dnl Verify if configure has been invoked with option
+dnl --enable-warnings or --disable-warnings, and set
+DNL shell variable want_warnings as appropriate.
+
+AC_DEFUN([CARES_CHECK_OPTION_WARNINGS], [
+ AC_REQUIRE([CARES_CHECK_OPTION_DEBUG])dnl
+ AC_BEFORE([$0],[AC_PROG_CC])dnl
+ AC_MSG_CHECKING([whether to enable strict compiler warnings])
+ OPT_COMPILER_WARNINGS="default"
+ AC_ARG_ENABLE(warnings,
+ AC_HELP_STRING([--enable-warnings],[Enable strict compiler warnings])
+ AC_HELP_STRING([--disable-warnings],[Disable strict compiler warnings]),
+ OPT_COMPILER_WARNINGS=$enableval)
+ case "$OPT_COMPILER_WARNINGS" in
+ no)
+ dnl --disable-warnings option used
+ want_warnings="no"
+ ;;
+ default)
+ dnl configure option not specified, so
+ dnl use same setting as --enable-debug
+ want_warnings="$want_debug"
+ ;;
+ *)
+ dnl --enable-warnings option used
+ want_warnings="yes"
+ ;;
+ esac
+ AC_MSG_RESULT([$want_warnings])
+])
AM_CONFIG_HEADER(lib/config.h src/config.h include/curl/curlbuild.h)
AM_MAINTAINER_MODE
+CURL_CHECK_OPTION_DEBUG
+CURL_CHECK_OPTION_WARNINGS
+
dnl SED is mandatory for configure process and libtool.
dnl Set it now, allowing it to be changed later.
AC_PATH_PROG([SED], [sed], [not_found],
dnl support building of Windows DLLs
AC_LIBTOOL_WIN32_DLL
+CURL_PROCESS_DEBUG_BUILD_OPTS
+
dnl skip libtool C++ and Fortran compiler checks
m4_ifdef([AC_PROG_CXX], [m4_undefine([AC_PROG_CXX])])
m4_defun([AC_PROG_CXX],[])
dnl platform/compiler/architecture specific checks/flags
dnl **********************************************************************
-ac_cv_compiler="unknown"
-ac_cv_compiler_num="unknown"
-
-AC_MSG_CHECKING([whether we are using the IBM C compiler])
-CURL_CHECK_DEF([__IBMC__], [], [silent])
-if test "$curl_cv_have_def___IBMC__" = "yes"; then
- AC_MSG_RESULT([yes])
- ac_cv_compiler="IBMC"
- dnl Ensure that compiler optimizations are always thread-safe.
- CFLAGS="$CFLAGS -qthreaded"
- dnl Disable type based strict aliasing optimizations, using worst
- dnl case aliasing assumptions when compiling. Type based aliasing
- dnl would restrict the lvalues that could be safely used to access
- dnl a data object.
- CFLAGS="$CFLAGS -qnoansialias"
- dnl Force compiler to stop after the compilation phase, without
- dnl generating an object code file when compilation has errors.
- CFLAGS="$CFLAGS -qhalt=e"
-else
- AC_MSG_RESULT([no])
-fi
-
-AC_MSG_CHECKING([whether we are using the Intel C compiler])
-CURL_CHECK_DEF([__INTEL_COMPILER], [], [silent])
-if test "$curl_cv_have_def___INTEL_COMPILER" = "yes"; then
- AC_MSG_RESULT([yes])
- ac_cv_compiler="ICC"
- ac_cv_compiler_num="$curl_cv_def___INTEL_COMPILER"
- dnl On unix this compiler uses gcc's header files, so
- dnl we select ANSI C89 dialect plus GNU extensions.
- CPPFLAGS="$CPPFLAGS -std=gnu89"
- if test "$ac_cv_compiler_num" -gt "600"; then
- dnl Show errors, warnings, and remarks
- CPPFLAGS="$CPPFLAGS -Wall"
- dnl Perform extra compile-time code checking
- CPPFLAGS="$CPPFLAGS -Wcheck"
- fi
- dnl Change some warnings into errors
- dnl #140: too many arguments in function call
- dnl #147: declaration is incompatible with 'previous one'
- dnl #165: too few arguments in function call
- dnl #266: function declared implicitly
- CPPFLAGS="$CPPFLAGS -we 140,147,165,266"
- dnl Disable some remarks
- dnl #279: controlling expression is constant
- dnl #981: operands are evaluated in unspecified order
- dnl #1469: "cc" clobber ignored
- if test "$ac_cv_compiler_num" -lt "910"; then
- CPPFLAGS="$CPPFLAGS -wd 279"
- fi
- CPPFLAGS="$CPPFLAGS -wd 981,1469"
- dnl Disable use of ANSI C aliasing rules in optimizations
- CFLAGS="$CFLAGS -no-ansi-alias"
- dnl Disable floating point optimizations
- CFLAGS="$CFLAGS -fp-model precise -mp"
-else
- AC_MSG_RESULT([no])
-fi
-
-AC_MSG_CHECKING([whether we are using the DEC/Compaq C compiler])
-CURL_CHECK_DEF([__DECC], [], [silent])
-CURL_CHECK_DEF([__DECC_VER], [], [silent])
-if test "$curl_cv_have_def___DECC" = "yes" &&
- test "$curl_cv_have_def___DECC_VER" = "yes"; then
- AC_MSG_RESULT([yes])
- ac_cv_compiler="DECC"
- dnl Select strict ANSI C compiler mode
- CFLAGS="$CFLAGS -std1"
- dnl Turn off optimizer ANSI C aliasing rules
- CFLAGS="$CFLAGS -noansi_alias"
- dnl Select a higher warning level than default level2
- CFLAGS="$CFLAGS -msg_enable level3"
- dnl Generate warnings for missing function prototypes
- CFLAGS="$CFLAGS -warnprotos"
- dnl Change some warnings into fatal errors
- CFLAGS="$CFLAGS -msg_fatal toofewargs,toomanyargs"
-else
- AC_MSG_RESULT([no])
-fi
-
-AC_MSG_CHECKING([whether we are using the GNU C compiler])
-CURL_CHECK_DEF([__GNUC__], [], [silent])
-if test "$curl_cv_have_def___GNUC__" = "yes" &&
- test "$ac_cv_compiler" = "unknown"; then
- AC_MSG_RESULT([yes])
- ac_cv_compiler="GNUC"
- gccver=`$CC -dumpversion`
- gccvhi=`echo $gccver | cut -d . -f1`
- gccvlo=`echo $gccver | cut -d . -f2`
- gccnum=`(expr $gccvhi "*" 100 + $gccvlo) 2>/dev/null`
- ac_cv_compiler_num="$gccnum"
- dnl this is a set of options we believe *ALL* gcc versions support:
- WARN="-W -Wall -Wwrite-strings -pedantic -Wpointer-arith -Wnested-externs -Winline -Wmissing-prototypes"
- dnl -Wcast-align is a bit too annoying on all gcc versions ;-)
- if test "$ac_cv_compiler_num" -ge "207"; then
- dnl gcc 2.7 or later
- WARN="$WARN -Wmissing-declarations"
- fi
- if test "$ac_cv_compiler_num" -gt "295"; then
- dnl only if the compiler is newer than 2.95 since we got lots of
- dnl "`_POSIX_C_SOURCE' is not defined" in system headers with
- dnl gcc 2.95.4 on FreeBSD 4.9!
- WARN="$WARN -Wundef -Wno-long-long -Wsign-compare -Wshadow -Wno-multichar"
- fi
- if test "$ac_cv_compiler_num" -ge "296"; then
- dnl gcc 2.96 or later
- WARN="$WARN -Wfloat-equal"
- fi
- if test "$ac_cv_compiler_num" -gt "296"; then
- dnl this option does not exist in 2.96
- WARN="$WARN -Wno-format-nonliteral"
- fi
- dnl -Wunreachable-code seems totally unreliable on my gcc 3.3.2 on
- dnl on i686-Linux as it gives us heaps with false positives.
- dnl Also, on gcc 4.0.X it is totally unbearable and complains all
- dnl over making it unusable for generic purposes. Let's not use it.
- if test "$ac_cv_compiler_num" -ge "303"; then
- dnl gcc 3.3 and later
- WARN="$WARN -Wendif-labels -Wstrict-prototypes"
- fi
- if test "$ac_cv_compiler_num" -ge "304"; then
- # try these on gcc 3.4
- WARN="$WARN -Wdeclaration-after-statement"
- fi
- for flag in $CPPFLAGS; do
- case "$flag" in
- -I*)
- dnl Include path, provide a -isystem option for the same dir
- dnl to prevent warnings in those dirs. The -isystem was not very
- dnl reliable on earlier gcc versions.
- add=`echo $flag | sed 's/^-I/-isystem /g'`
- WARN="$WARN $add"
- ;;
- esac
- done
- CFLAGS="$CFLAGS $WARN"
- AC_MSG_NOTICE([Added this set of compiler options: $WARN])
-else
- AC_MSG_RESULT([no])
-fi
+CURL_CHECK_COMPILER
+CURL_PROCESS_CC_BASIC_OPTS
+CURL_PROCESS_CC_DEBUG_OPTS
+CURL_PROCESS_CC_WARNING_OPTS
case $host in
#
x86_64*linux*|amd64*freebsd*|ia64*freebsd*)
#
- if test "$ac_cv_compiler" = "ICC"; then
+ if test "$compiler_id" = "ICC_unix"; then
#
- if test "$ac_cv_compiler_num" -ge "900" &&
- test "$ac_cv_compiler_num" -lt "1000"; then
+ if test "$compiler_num" -ge "900" &&
+ test "$compiler_num" -lt "1000"; then
dnl icc 9.X specific
CFLAGS="$CFLAGS -i-dynamic"
fi
#
- if test "$ac_cv_compiler_num" -ge "1000"; then
+ if test "$compiler_num" -ge "1000"; then
dnl icc 10.X or later
CFLAGS="$CFLAGS -shared-intel"
fi
)
dnl ************************************************************
-dnl lame option to switch on debug options
-dnl
-AC_MSG_CHECKING([whether to enable debug options])
-AC_ARG_ENABLE(debug,
-AC_HELP_STRING([--enable-debug],[Enable pedantic debug options])
-AC_HELP_STRING([--disable-debug],[Disable debug options]),
-[ case "$enableval" in
- no)
- AC_MSG_RESULT(no)
- ;;
- *) AC_MSG_RESULT(yes)
-
- CPPFLAGS="$CPPFLAGS -DCURLDEBUG"
- CFLAGS="$CFLAGS -g"
-
- dnl set compiler "debug" options to become more picky, and remove
- dnl optimize options from CFLAGS
- CURL_CC_DEBUG_OPTS
- ;;
- esac
- ],
- AC_MSG_RESULT(no)
-)
-
-dnl ************************************************************
dnl disable cryptographic authentication
dnl
AC_MSG_CHECKING([whether to enable cryptographic authentication methods])
--- /dev/null
+#***************************************************************************
+# _ _ ____ _
+# Project ___| | | | _ \| |
+# / __| | | | |_) | |
+# | (__| |_| | _ <| |___
+# \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2008, Daniel Stenberg, <daniel@haxx.se>, et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at http://curl.haxx.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+# $Id$
+#***************************************************************************
+
+# File version for 'aclocal' use. Keep it a single number.
+# serial 1
+
+
+dnl CURL_CHECK_COMPILER
+dnl -------------------------------------------------
+dnl Verify if the C compiler being used is known.
+
+AC_DEFUN([CURL_CHECK_COMPILER], [
+ #
+ compiler_id="unknown"
+ compiler_num="0"
+ #
+ CURL_CHECK_COMPILER_DEC
+ CURL_CHECK_COMPILER_IBM
+ CURL_CHECK_COMPILER_INTEL
+ CURL_CHECK_COMPILER_GNU
+ #
+])
+
+
+dnl CURL_CHECK_COMPILER_DEC
+dnl -------------------------------------------------
+dnl Verify if the C compiler being used is DEC's.
+
+AC_DEFUN([CURL_CHECK_COMPILER_DEC], [
+ AC_MSG_CHECKING([whether we are using the DEC/Compaq C compiler])
+ CURL_CHECK_DEF([__DECC], [], [silent])
+ CURL_CHECK_DEF([__DECC_VER], [], [silent])
+ if test "$curl_cv_have_def___DECC" = "yes" &&
+ test "$curl_cv_have_def___DECC_VER" = "yes"; then
+ AC_MSG_RESULT([yes])
+ compiler_id="DECC"
+ else
+ AC_MSG_RESULT([no])
+ fi
+])
+
+
+dnl CURL_CHECK_COMPILER_GNU
+dnl -------------------------------------------------
+dnl Verify if the C compiler being used is GNU's.
+
+AC_DEFUN([CURL_CHECK_COMPILER_GNU], [
+ AC_REQUIRE([CURL_CHECK_COMPILER_INTEL])dnl
+ #
+ AC_MSG_CHECKING([whether we are using the GNU C compiler])
+ CURL_CHECK_DEF([__GNUC__], [], [silent])
+ if test "$curl_cv_have_def___GNUC__" = "yes" &&
+ test "$compiler_id" = "unknown"; then
+ AC_MSG_RESULT([yes])
+ compiler_id="GNUC"
+ gccver=`$CC -dumpversion`
+ gccvhi=`echo $gccver | cut -d . -f1`
+ gccvlo=`echo $gccver | cut -d . -f2`
+ compiler_num=`(expr $gccvhi "*" 100 + $gccvlo) 2>/dev/null`
+ else
+ AC_MSG_RESULT([no])
+ fi
+])
+
+
+dnl CURL_CHECK_COMPILER_IBM
+dnl -------------------------------------------------
+dnl Verify if the C compiler being used is IBM's.
+
+AC_DEFUN([CURL_CHECK_COMPILER_IBM], [
+ AC_MSG_CHECKING([whether we are using the IBM C compiler])
+ CURL_CHECK_DEF([__IBMC__], [], [silent])
+ if test "$curl_cv_have_def___IBMC__" = "yes"; then
+ AC_MSG_RESULT([yes])
+ compiler_id="IBMC"
+ else
+ AC_MSG_RESULT([no])
+ fi
+])
+
+
+dnl CURL_CHECK_COMPILER_INTEL
+dnl -------------------------------------------------
+dnl Verify if the C compiler being used is Intel's.
+
+AC_DEFUN([CURL_CHECK_COMPILER_INTEL], [
+ AC_BEFORE([$0],[CURL_CHECK_COMPILER_GNU])dnl
+ AC_MSG_CHECKING([whether we are using the Intel C compiler])
+ CURL_CHECK_DEF([__INTEL_COMPILER], [], [silent])
+ if test "$curl_cv_have_def___INTEL_COMPILER" = "yes"; then
+ AC_MSG_RESULT([yes])
+ CURL_CHECK_DEF([__unix__], [], [silent])
+ if test "$curl_cv_have_def___unix__" = "yes"; then
+ compiler_id="ICC_unix"
+ else
+ compiler_id="ICC_windows"
+ fi
+ compiler_num="$curl_cv_def___INTEL_COMPILER"
+ else
+ AC_MSG_RESULT([no])
+ fi
+])
+
+
+dnl CURL_PROCESS_CC_BASIC_OPTS
+dnl -------------------------------------------------
+dnl Sets compiler options/flags which are independant
+dnl of configure's debug or warnings options.
+
+AC_DEFUN([CURL_PROCESS_CC_BASIC_OPTS], [
+ AC_REQUIRE([CURL_CHECK_COMPILER])dnl
+ #
+ if test "$compiler_id" = "DECC"; then
+ dnl Select strict ANSI C compiler mode
+ CFLAGS="$CFLAGS -std1"
+ dnl Turn off optimizer ANSI C aliasing rules
+ CFLAGS="$CFLAGS -noansi_alias"
+ dnl Generate warnings for missing function prototypes
+ CFLAGS="$CFLAGS -warnprotos"
+ dnl Change some warnings into fatal errors
+ CFLAGS="$CFLAGS -msg_fatal toofewargs,toomanyargs"
+ fi
+ #
+ if test "$compiler_id" = "IBMC"; then
+ dnl Ensure that compiler optimizations are always thread-safe.
+ CFLAGS="$CFLAGS -qthreaded"
+ dnl Disable type based strict aliasing optimizations, using worst
+ dnl case aliasing assumptions when compiling. Type based aliasing
+ dnl would restrict the lvalues that could be safely used to access
+ dnl a data object.
+ CFLAGS="$CFLAGS -qnoansialias"
+ dnl Force compiler to stop after the compilation phase, without
+ dnl generating an object code file when compilation has errors.
+ CFLAGS="$CFLAGS -qhalt=e"
+ fi
+ #
+ if test "$compiler_id" = "ICC_unix"; then
+ dnl On unix this compiler uses gcc's header files, so
+ dnl we select ANSI C89 dialect plus GNU extensions.
+ CPPFLAGS="$CPPFLAGS -std=gnu89"
+ dnl Change some warnings into errors
+ dnl #140: too many arguments in function call
+ dnl #147: declaration is incompatible with 'previous one'
+ dnl #165: too few arguments in function call
+ dnl #266: function declared implicitly
+ CPPFLAGS="$CPPFLAGS -we 140,147,165,266"
+ dnl Disable some remarks
+ dnl #279: controlling expression is constant
+ dnl #981: operands are evaluated in unspecified order
+ dnl #1469: "cc" clobber ignored
+ if test "$compiler_num" -lt "910"; then
+ CPPFLAGS="$CPPFLAGS -wd 279"
+ fi
+ CPPFLAGS="$CPPFLAGS -wd 981,1469"
+ dnl Disable use of ANSI C aliasing rules in optimizations
+ CFLAGS="$CFLAGS -no-ansi-alias"
+ dnl Disable floating point optimizations
+ CFLAGS="$CFLAGS -fp-model precise"
+ fi
+])
+
+
+dnl CURL_PROCESS_CC_DEBUG_OPTS
+dnl -------------------------------------------------
+dnl Sets compiler options/flags which depend on
+dnl configure's debug given option.
+
+AC_DEFUN([CURL_PROCESS_CC_DEBUG_OPTS], [
+ AC_REQUIRE([CURL_CHECK_OPTION_DEBUG])dnl
+ AC_REQUIRE([CURL_CHECK_COMPILER])dnl
+ #
+ if test "$want_debug" = "yes"; then
+ CFLAGS="$CFLAGS -g"
+ fi
+ #
+ if test "$want_debug" = "no"; then
+ dnl strip off optimizer flags
+ NEWFLAGS=""
+ for flag in $CFLAGS; do
+ case "$flag" in
+ -O*)
+ dnl echo "cut off $flag"
+ ;;
+ *)
+ NEWFLAGS="$NEWFLAGS $flag"
+ ;;
+ esac
+ done
+ CFLAGS=$NEWFLAGS
+ fi
+ #
+])
+
+
+dnl CURL_PROCESS_CC_WARNING_OPTS
+dnl -------------------------------------------------
+dnl Sets compiler options/flags which depend on
+dnl configure's warnings given option.
+
+AC_DEFUN([CURL_PROCESS_CC_WARNING_OPTS], [
+ AC_REQUIRE([CURL_CHECK_OPTION_WARNINGS])dnl
+ AC_REQUIRE([CURL_CHECK_COMPILER])dnl
+ #
+ if test "$compiler_id" = "DECC"; then
+ if test "$want_warnings" = "yes"; then
+ dnl Select a higher warning level than default level2
+ CFLAGS="$CFLAGS -msg_enable level3"
+ fi
+ fi
+ #
+ if test "$compiler_id" = "ICC_unix"; then
+ if test "$want_warnings" = "yes"; then
+ if test "$compiler_num" -gt "600"; then
+ dnl Show errors, warnings, and remarks
+ CPPFLAGS="$CPPFLAGS -Wall"
+ dnl Perform extra compile-time code checking
+ CPPFLAGS="$CPPFLAGS -Wcheck"
+ fi
+ fi
+ fi
+ #
+ if test "$compiler_id" = "GNUC"; then
+ #
+ # FIXME: Some of these warnings should be changed into errors
+ # and moved to CURL-PROCESS-CC-BASIC-OPTS
+ #
+ if test "$want_warnings" = "yes"; then
+ dnl this is a set of options we believe *ALL* gcc versions support:
+ WARN="-W -Wall -Wwrite-strings -pedantic -Wpointer-arith -Wnested-externs -Winline -Wmissing-prototypes"
+ dnl -Wcast-align is a bit too annoying on all gcc versions ;-)
+ if test "$compiler_num" -ge "207"; then
+ dnl gcc 2.7 or later
+ WARN="$WARN -Wmissing-declarations"
+ fi
+ if test "$compiler_num" -gt "295"; then
+ dnl only if the compiler is newer than 2.95 since we got lots of
+ dnl "`_POSIX_C_SOURCE' is not defined" in system headers with
+ dnl gcc 2.95.4 on FreeBSD 4.9!
+ WARN="$WARN -Wundef -Wno-long-long -Wsign-compare -Wshadow -Wno-multichar"
+ fi
+ if test "$compiler_num" -ge "296"; then
+ dnl gcc 2.96 or later
+ WARN="$WARN -Wfloat-equal"
+ fi
+ if test "$compiler_num" -gt "296"; then
+ dnl this option does not exist in 2.96
+ WARN="$WARN -Wno-format-nonliteral"
+ fi
+ dnl -Wunreachable-code seems totally unreliable on my gcc 3.3.2 on
+ dnl on i686-Linux as it gives us heaps with false positives.
+ dnl Also, on gcc 4.0.X it is totally unbearable and complains all
+ dnl over making it unusable for generic purposes. Let's not use it.
+ if test "$compiler_num" -ge "303"; then
+ dnl gcc 3.3 and later
+ WARN="$WARN -Wendif-labels -Wstrict-prototypes"
+ fi
+ if test "$compiler_num" -ge "304"; then
+ # try these on gcc 3.4
+ WARN="$WARN -Wdeclaration-after-statement"
+ fi
+ for flag in $CPPFLAGS; do
+ case "$flag" in
+ -I*)
+ dnl Include path, provide a -isystem option for the same dir
+ dnl to prevent warnings in those dirs. The -isystem was not very
+ dnl reliable on earlier gcc versions.
+ add=`echo $flag | sed 's/^-I/-isystem /g'`
+ WARN="$WARN $add"
+ ;;
+ esac
+ done
+ CFLAGS="$CFLAGS $WARN"
+ AC_MSG_NOTICE([Added this set of compiler options: $WARN])
+ fi
+ fi
+ #
+])
+
+
+dnl CURL_PROCESS_DEBUG_BUILD_OPTS
+dnl -------------------------------------------------
+dnl Settings which depend on configure's debug given
+dnl option, and further configure the build process.
+
+AC_DEFUN([CURL_PROCESS_DEBUG_BUILD_OPTS], [
+ AC_REQUIRE([CURL_CHECK_OPTION_DEBUG])dnl
+ AC_BEFORE([$0],[AC_PROG_LIBTOOL])dnl
+ #
+ if test "$want_debug" = "yes"; then
+ CPPFLAGS="$CPPFLAGS -DCURLDEBUG"
+ fi
+ #
+])
+
+
+
--- /dev/null
+#***************************************************************************
+# _ _ ____ _
+# Project ___| | | | _ \| |
+# / __| | | | |_) | |
+# | (__| |_| | _ <| |___
+# \___|\___/|_| \_\_____|
+#
+# Copyright (C) 1998 - 2008, Daniel Stenberg, <daniel@haxx.se>, et al.
+#
+# This software is licensed as described in the file COPYING, which
+# you should have received as part of this distribution. The terms
+# are also available at http://curl.haxx.se/docs/copyright.html.
+#
+# You may opt to use, copy, modify, merge, publish, distribute and/or sell
+# copies of the Software, and permit persons to whom the Software is
+# furnished to do so, under the terms of the COPYING file.
+#
+# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+# KIND, either express or implied.
+#
+# $Id$
+#***************************************************************************
+
+# File version for 'aclocal' use. Keep it a single number.
+# serial 1
+
+
+dnl CURL_CHECK_OPTION_DEBUG
+dnl -------------------------------------------------
+dnl Verify if configure has been invoked with option
+dnl --enable-debug or --disable-debug, and set shell
+dnl variable want_debug value as appropriate.
+
+AC_DEFUN([CURL_CHECK_OPTION_DEBUG], [
+ AC_BEFORE([$0],[CURL_CHECK_OPTION_DEBUG])dnl
+ AC_BEFORE([$0],[AC_PROG_CC])dnl
+ AC_MSG_CHECKING([whether to enable debug build options])
+ OPT_DEBUG_BUILD="default"
+ AC_ARG_ENABLE(debug,
+ AC_HELP_STRING([--enable-debug],[Enable debug build options])
+ AC_HELP_STRING([--disable-debug],[Disable debug build options]),
+ OPT_DEBUG_BUILD=$enableval)
+ case "$OPT_DEBUG_BUILD" in
+ no)
+ dnl --disable-debug option used
+ want_debug="no"
+ ;;
+ default)
+ dnl configure option not specified
+ want_debug="no"
+ ;;
+ *)
+ dnl --enable-debug option used
+ want_debug="yes"
+ ;;
+ esac
+ AC_MSG_RESULT([$want_debug])
+])
+
+
+dnl CURL_CHECK_OPTION_WARNINGS
+dnl -------------------------------------------------
+dnl Verify if configure has been invoked with option
+dnl --enable-warnings or --disable-warnings, and set
+DNL shell variable want_warnings as appropriate.
+
+AC_DEFUN([CURL_CHECK_OPTION_WARNINGS], [
+ AC_REQUIRE([CURL_CHECK_OPTION_DEBUG])dnl
+ AC_BEFORE([$0],[AC_PROG_CC])dnl
+ AC_MSG_CHECKING([whether to enable strict compiler warnings])
+ OPT_COMPILER_WARNINGS="default"
+ AC_ARG_ENABLE(warnings,
+ AC_HELP_STRING([--enable-warnings],[Enable strict compiler warnings])
+ AC_HELP_STRING([--disable-warnings],[Disable strict compiler warnings]),
+ OPT_COMPILER_WARNINGS=$enableval)
+ case "$OPT_COMPILER_WARNINGS" in
+ no)
+ dnl --disable-warnings option used
+ want_warnings="no"
+ ;;
+ default)
+ dnl configure option not specified, so
+ dnl use same setting as --enable-debug
+ want_warnings="$want_debug"
+ ;;
+ *)
+ dnl --enable-warnings option used
+ want_warnings="yes"
+ ;;
+ esac
+ AC_MSG_RESULT([$want_warnings])
+])
+
projects / platform / upstream / curl.git / commitdiff