| AC_DEFUN([AC_PROG_CC_PIE], [ |
| AC_CACHE_CHECK([whether ${CC-cc} accepts -fPIE], ac_cv_prog_cc_pie, [ |
| echo 'void f(){}' > conftest.c |
| if test -z "`${CC-cc} -fPIE -pie -c conftest.c 2>&1`"; then |
| ac_cv_prog_cc_pie=yes |
| else |
| ac_cv_prog_cc_pie=no |
| fi |
| rm -rf conftest* |
| ]) |
| ]) |
| |
| AC_DEFUN([COMPILER_FLAGS], [ |
| if (test "${CFLAGS}" = ""); then |
| CFLAGS="-Wall -O2 -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2" |
| fi |
| if (test "$USE_MAINTAINER_MODE" = "yes"); then |
| CFLAGS+=" -Werror -Wextra" |
| CFLAGS+=" -Wno-unused-parameter" |
| CFLAGS+=" -Wno-missing-field-initializers" |
| CFLAGS+=" -Wdeclaration-after-statement" |
| CFLAGS+=" -Wmissing-declarations" |
| CFLAGS+=" -Wredundant-decls" |
| CFLAGS+=" -Wcast-align" |
| CFLAGS="$CFLAGS -DG_DISABLE_DEPRECATED" |
| fi |
| ]) |