diff options
| author | Thorsten Kukuk <kukuk@thkukuk.de> | 2006-01-12 15:34:49 +0000 |
|---|---|---|
| committer | Thorsten Kukuk <kukuk@thkukuk.de> | 2006-01-12 15:34:49 +0000 |
| commit | 15d1bd639b095fe63c164dcb5ba8977e8eecb73b (patch) | |
| tree | c233e06b20af14146282a48a44846072ed3e756b /configure.in | |
| parent | 94483545da687d9dba81175575d07ba9f77a3eb5 (diff) | |
Relevant BUGIDs: none
Purpose of commit: new feature
Commit summary:
---------------
2006-01-12 Thorsten Kukuk <kukuk@thkukuk.de>
* configure.in: Add check for -fpie/-pie
* modules/pam_filter/upperLOWER/Makefile.am: Compile/link
upperLOWER with -fpie/-pie if supported.
* modules/pam_unix/Makefile.am: Compile/link unix_chkpwd
with -fpie/-pie if supported.
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/configure.in b/configure.in index de800a62..0b0b18f2 100644 --- a/configure.in +++ b/configure.in @@ -142,6 +142,36 @@ AM_CONDITIONAL([HAVE_VERSIONING], [test "$libc_cv_ld_version_script_option" = "yes"]) dnl +dnl check for -fPIE/-pie support +dnl +AC_ARG_ENABLE(pie,AS_HELP_STRING([--disable-pie], + [Disable position-independent executeables (PIE)]), + USE_PIE=$enableval, USE_PIE=yes) + +AC_CACHE_CHECK(for -fpie, libc_cv_fpie, [dnl + cat > conftest.c <<EOF +int foo; +main () { return 0;} +EOF + if test "$USE_PIE" = "yes" && + AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -pie -fpie + -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD]) + then + libc_cv_fpie=yes + PIE_CFLAGS="-fpie" + PIE_LDFLAGS="-pie" + else + libc_cv_fpie=no + PIE_CFLAGS="" + PIE_LDFLAGS="" + fi + rm -f conftest*]) +AC_SUBST(libc_cv_fpie) +AC_SUBST(PIE_CFLAGS) +AC_SUBST(PIE_LDFLAGS) + + +dnl dnl options and defaults dnl |