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([COMPILER_FLAGS], [
  14         if (test "${CFLAGS}" = ""); then
  15                 CFLAGS="-Wall -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2"
  16         fi
  17         if (test "$USE_MAINTAINER_MODE" = "yes"); then
  18                 CFLAGS+=" -Werror -Wextra"
  19                 CFLAGS+=" -Wno-unused-parameter"
  20                 CFLAGS+=" -Wno-missing-field-initializers"
  21                 CFLAGS+=" -Wdeclaration-after-statement"
  22                 CFLAGS+=" -Wmissing-declarations"
  23                 CFLAGS+=" -Wredundant-decls"
  24                 CFLAGS+=" -Wcast-align"
  25                 CFLAGS="$CFLAGS -DG_DISABLE_DEPRECATED"
  26         fi
  27 ])