diff options
| -rwxr-xr-x | configure | 31 | ||||
| -rw-r--r-- | configure.ac | 28 |
2 files changed, 58 insertions, 1 deletions
@@ -1,5 +1,5 @@ #! /bin/sh -# From configure.ac 6a3c3cc. +# From configure.ac 302aefb. # Guess values for system-dependent variables and create Makefiles. # Generated by GNU Autoconf 2.69. # @@ -5194,6 +5194,8 @@ fi + + # # sanitize Support test # @@ -6064,6 +6066,33 @@ fi rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + + { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -fno-omit-frame-pointer" >&5 +$as_echo_n "checking whether $CC supports -fno-omit-frame-pointer... " >&6; } + OLD_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -fno-omit-frame-pointer" + OLD_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS -fno-omit-frame-pointer" + cat confdefs.h - <<_ACEOF >conftest.$ac_ext +/* end confdefs.h. */ +int foo; +_ACEOF +if ac_fn_c_try_compile "$LINENO"; then : + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5 +$as_echo "yes" >&6; } + +else + + { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5 +$as_echo "no" >&6; } + CFLAGS="$OLD_CFLAGS" + LDFLAGS="$OLD_LDFLAGS" + +fi +rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext + + fi fi diff --git a/configure.ac b/configure.ac index 0a86ffb58..e88834722 100644 --- a/configure.ac +++ b/configure.ac @@ -789,6 +789,32 @@ AC_DEFUN([AC_CHECK_SANITIZER_FLAG], ] ) +AC_DEFUN([AC_CHECK_FLAG], + [ + AC_MSG_CHECKING([whether $CC supports $1]) + OLD_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $1" + OLD_LDFLAGS="$LDFLAGS" + LDFLAGS="$LDFLAGS $1" + AC_COMPILE_IFELSE( + [AC_LANG_SOURCE([int foo;])], + [ + AC_MSG_RESULT([yes]) + ], + [ + AC_MSG_RESULT([no]) + CFLAGS="$OLD_CFLAGS" + LDFLAGS="$OLD_LDFLAGS" + ], + [ + AC_MSG_RESULT([guessing no]) + CFLAGS="$OLD_CFLAGS" + LDFLAGS="$OLD_LDFLAGS" + ] + ) + ] +) + # # sanitize Support test # @@ -1198,10 +1224,12 @@ case $enable_debug in "yes") CFLAGS="$CFLAGS -g" CPPFLAGS="$CPPFLAGS -DDEBUG" + AC_CHECK_FLAG(-fno-omit-frame-pointer) ;; "gdb") CFLAGS="$CFLAGS -ggdb" CPPFLAGS="$CPPFLAGS -DDEBUG" + AC_CHECK_FLAG(-fno-omit-frame-pointer) ;; esac |