acinclude.m4

   1 AC_DEFUN([AC_PROG_CC_PIE], [
   2         AC_CACHE_CHECK([whether ${CC-cc} accepts -fPIE], ac_cv_prog_cc_pie, [
   3                 echo 'void f(){}' > conftest.c
   4                 if test -z "`${CC-cc} -fPIE -pie -c conftest.c 2>&1`"; then
   5                         ac_cv_prog_cc_pie=yes
   6                 else
   7                         ac_cv_prog_cc_pie=no
   8                 fi
   9                 rm -rf conftest*
  10         ])
  11 ])
  12
  13 AC_DEFUN([AC_PATH_READLINE], [
  14         AC_CHECK_HEADER(readline/readline.h,
  15                 [AC_CHECK_LIB(readline, main,
  16                         [ readline_found=yes
  17                         AC_SUBST(READLINE_LIBS, "-lreadline")
  18                         ], readline_found=no)],
  19                 [])
  20 ])
  21
  22 AC_DEFUN([COMPILER_FLAGS], [
  23         if (test "${CFLAGS}" = ""); then
  24                 CFLAGS="-Wall -O2 -D_FORTIFY_SOURCE=2"
  25         fi
  26         if (test "$USE_MAINTAINER_MODE" = "yes"); then
  27                 CFLAGS="$CFLAGS -Werror -Wextra"
  28                 CFLAGS="$CFLAGS -Wno-unused-parameter"
  29                 CFLAGS="$CFLAGS -Wno-missing-field-initializers"
  30                 CFLAGS="$CFLAGS -Wdeclaration-after-statement"
  31                 CFLAGS="$CFLAGS -Wmissing-declarations"
  32                 CFLAGS="$CFLAGS -Wredundant-decls"
  33                 CFLAGS="$CFLAGS -Wcast-align"
  34                 CFLAGS="$CFLAGS -DG_DISABLE_DEPRECATED"
  35         fi
  36 ])