1 ## Process this file with autoconf to produce configure.
2 ## In general, the safest way to proceed is to run the following:
3 ## % aclocal -I . -I `pwd`/../autoconf && autoheader && autoconf && automake
5 # make sure we're interpreted by some minimal autoconf
8 AC_INIT(glog, 0.3.0, opensource@google.com)
9 # The argument here is just something that should be in the current directory
10 # (for sanity checking)
11 AC_CONFIG_SRCDIR(README)
13 AM_CONFIG_HEADER(src/config.h)
15 # Checks for programs.
19 AM_CONDITIONAL(GCC, test "$GCC" = yes) # let the Makefile know if we're gcc
22 AC_SUBST(LIBTOOL_DEPS)
24 # Check whether some low-level functions/files are available
27 # These are tested for by AC_HEADER_STDC, but I check again to set the var
28 AC_CHECK_HEADER(stdint.h, ac_cv_have_stdint_h=1, ac_cv_have_stdint_h=0)
29 AC_CHECK_HEADER(sys/types.h, ac_cv_have_systypes_h=1, ac_cv_have_systypes_h=0)
30 AC_CHECK_HEADER(inttypes.h, ac_cv_have_inttypes_h=1, ac_cv_have_inttypes_h=0)
31 AC_CHECK_HEADERS(unistd.h, ac_cv_have_unistd_h=1, ac_cv_have_unistd_h=0)
32 AC_CHECK_HEADERS(syscall.h)
33 AC_CHECK_HEADERS(sys/syscall.h)
34 # For backtrace with glibc.
35 AC_CHECK_HEADERS(execinfo.h)
36 # For backtrace with libunwind.
37 AC_CHECK_HEADERS(libunwind.h)
38 AC_CHECK_HEADERS(ucontext.h)
39 AC_CHECK_HEADERS(sys/utsname.h)
40 AC_CHECK_HEADERS(pwd.h)
41 AC_CHECK_HEADERS(syslog.h)
42 AC_CHECK_HEADERS(sys/time.h)
43 AC_CHECK_HEADERS(glob.h)
45 AC_CHECK_SIZEOF(void *)
47 # These are the types I need. We look for them in either stdint.h,
48 # sys/types.h, or inttypes.h, all of which are part of the default-includes.
49 AC_CHECK_TYPE(uint16_t, ac_cv_have_uint16_t=1, ac_cv_have_uint16_t=0)
50 AC_CHECK_TYPE(u_int16_t, ac_cv_have_u_int16_t=1, ac_cv_have_u_int16_t=0)
51 AC_CHECK_TYPE(__uint16, ac_cv_have___uint16=1, ac_cv_have___uint16=0)
53 AC_CHECK_FUNC(sigaltstack,
54 AC_DEFINE(HAVE_SIGALTSTACK, 1,
55 [Define if you have the `sigaltstack' function]))
57 AC_DEFINE(HAVE_DLADDR, 1,
58 [Define if you have the `dladdr' function]))
60 AC_DEFINE(HAVE_FCNTL, 1,
61 [Define if you have the `fcntl' function]))
64 # We only care about these two attributes.
65 if test x"$ac_cv___attribute__" = x"yes"; then
66 ac_cv___attribute___noreturn="__attribute__ ((noreturn))"
67 ac_cv___attribute___printf_4_5="__attribute__((__format__ (__printf__, 4, 5)))"
69 ac_cv___attribute___noreturn=
70 ac_cv___attribute___printf_4_5=
74 if test x"$ac_cv___builtin_expect" = x"yes"; then
75 ac_cv_have___builtin_expect=1
77 ac_cv_have___builtin_expect=0
80 AX_C___SYNC_VAL_COMPARE_AND_SWAP
82 # On x86_64, instead of libunwind, we can choose to compile with frame-pointers
83 # (This isn't needed on i386, where -fno-omit-frame-pointer is the default).
84 AC_ARG_ENABLE(frame_pointers,
85 AS_HELP_STRING([--enable-frame-pointers],
86 [On x86_64 systems, compile with -fno-omit-frame-pointer (see INSTALL)]),
87 enable_frame_pointers=no)
88 AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [return __x86_64__ == 1 ? 0 : 1])],
89 [is_x86_64=yes], [is_x86_64=no])
90 AM_CONDITIONAL(ENABLE_FRAME_POINTERS, test "$enable_frame_pointers" = yes)
91 AM_CONDITIONAL(X86_64, test "$is_x86_64" = yes)
93 # Some of the code in this directory depends on pthreads
95 if test x"$acx_pthread_ok" = x"yes"; then
96 # To make libglog depend on libpthread on Linux, we need to add
97 # -lpthread in addition to -pthread.
98 AC_CHECK_LIB(pthread, pthread_self)
101 # Check if there is google-gflags library installed.
102 SAVE_CFLAGS="$CFLAGS"
104 AC_ARG_WITH(gflags, AS_HELP_STRING[--with-gflags=GFLAGS_DIR],
105 GFLAGS_CFLAGS="-I${with_gflags}/include"
106 GFLAGS_LIBS="-L${with_gflags}/lib -lgflags"
107 CFLAGS="$CFLAGS $GFLAGS_CFLAGS"
108 LIBS="$LIBS $GFLAGS_LIBS"
110 AC_CHECK_LIB(gflags, main, ac_cv_have_libgflags=1, ac_cv_have_libgflags=0)
111 if test x"$ac_cv_have_libgflags" = x"1"; then
112 AC_DEFINE(HAVE_LIB_GFLAGS, 1, [define if you have google gflags library])
113 if test x"$GFLAGS_LIBS" = x""; then
114 GFLAGS_LIBS="-lgflags"
120 CFLAGS="$SAVE_CFLAGS"
123 # TODO(hamaji): Use official m4 macros provided by testing libraries
124 # once the m4 macro of Google Mocking becomes ready.
125 # Check if there is Google Test library installed.
126 AC_CHECK_PROG(GTEST_CONFIG, gtest-config, "yes")
127 if test x"$GTEST_CONFIG" = "xyes"; then
128 GTEST_CFLAGS=`gtest-config --cppflags --cxxflags`
129 GTEST_LIBS=`gtest-config --ldflags --libs`
130 AC_DEFINE(HAVE_LIB_GTEST, 1, [define if you have google gtest library])
132 # Check if there is Google Mocking library installed.
133 AC_CHECK_PROG(GMOCK_CONFIG, gmock-config, "yes")
134 if test x"$GMOCK_CONFIG" = "xyes"; then
135 GMOCK_CFLAGS=`gmock-config --cppflags --cxxflags`
136 GMOCK_LIBS=`gmock-config --ldflags --libs`
137 AC_DEFINE(HAVE_LIB_GMOCK, 1, [define if you have google gmock library])
139 # We don't run test cases which use Google Mocking framework.
144 # We'll use src/googletest.h for our unittests.
148 AM_CONDITIONAL(HAVE_GMOCK, test x"$GMOCK_CONFIG" = "xyes")
150 # We want to link in libunwind if it exists
152 # Unfortunately, we need to check the header file in addition to the
153 # lib file to check if libunwind is available since libunwind-0.98
154 # doesn't install all necessary header files.
155 if test x"$ac_cv_have_libunwind_h" = x"1"; then
156 AC_CHECK_LIB(unwind, backtrace, UNWIND_LIBS=-lunwind)
158 AC_SUBST(UNWIND_LIBS)
159 if test x"$UNWIND_LIBS" != x""; then
160 AC_DEFINE(HAVE_LIB_UNWIND, 1, [define if you have libunwind])
163 # We'd like to use read/write locks in several places in the code.
164 # See if our pthreads support extends to that. Note: for linux, it
165 # does as long as you define _XOPEN_SOURCE appropriately.
168 # Find out what namespace 'normal' STL code lives in, and also what namespace
169 # the user wants our classes to be defined in
171 AC_DEFINE_GOOGLE_NAMESPACE(google)
173 AC_CXX_USING_OPERATOR
175 AC_PC_FROM_UCONTEXT(AC_MSG_WARN(Could not find the PC. Will not output failed addresses...))
177 # These are what's needed by logging.h.in and raw_logging.h.in
178 AC_SUBST(ac_google_start_namespace)
179 AC_SUBST(ac_google_end_namespace)
180 AC_SUBST(ac_google_namespace)
181 AC_SUBST(ac_cv_cxx_using_operator)
182 AC_SUBST(ac_cv___attribute___noreturn)
183 AC_SUBST(ac_cv___attribute___printf_4_5)
184 AC_SUBST(ac_cv_have___builtin_expect)
185 AC_SUBST(ac_cv_have_stdint_h)
186 AC_SUBST(ac_cv_have_systypes_h)
187 AC_SUBST(ac_cv_have_inttypes_h)
188 AC_SUBST(ac_cv_have_unistd_h)
189 AC_SUBST(ac_cv_have_uint16_t)
190 AC_SUBST(ac_cv_have_u_int16_t)
191 AC_SUBST(ac_cv_have___uint16)
192 AC_SUBST(ac_cv_have_libgflags)
193 AC_SUBST(GFLAGS_CFLAGS)
194 AC_SUBST(GTEST_CFLAGS)
195 AC_SUBST(GMOCK_CFLAGS)
196 AC_SUBST(GFLAGS_LIBS)
200 # Write generated configuration file
201 AC_CONFIG_FILES([Makefile src/glog/logging.h src/glog/raw_logging.h src/glog/vlog_is_on.h src/glog/stl_logging.h])
202 AC_OUTPUT(libglog.pc)