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| author |   Anthony G. Basile <blueness@gentoo.org> | 2012-12-12 19:50:12 +0000 |
|---|---|---|
| committer | Anthony G. Basile <blueness@gentoo.org> | 2012-12-12 14:57:46 -0500 |
| commit | 382afaee42d294e84e45318790de6593b5b39219 (patch) | |
| tree | 41c370be1d35e58c34e5597b30ceb53bf7738533 /configure.ac | |
| parent | configure.ac: disable silent rules (diff) | |
| download | elfix-382afaee42d294e84e45318790de6593b5b39219.tar.gz elfix-382afaee42d294e84e45318790de6593b5b39219.tar.bz2 elfix-382afaee42d294e84e45318790de6593b5b39219.zip | |
Add logic for NEED_PAX_DECLS when gelf.h is present but lacks them
On a gentoo system <sys-libs/glibc-2.16, elf.h is no longer patched
to provide PT_PAX_FLAGS and PF_* for the PAX program header of ELF
binaries. As a result, we must include them. These will eventuall
be exported by upstream PAX team in a separate header but for now
we test 1) do we want PT_PAX, if yes, then test for gelf.h and for
the DECLS. If we don't have the DECLS, then include our local copy.
or 2) so we want only XATTR PAX, in which case don't test for gelf.h,
don't include it and provide our local DECLS.
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/configure.ac b/configure.ac index 43c74e9..7c7e3f7 100644 --- a/configure.ac +++ b/configure.ac @@ -66,13 +66,15 @@ AS_IF( AC_CHECK_DECLS( [PT_PAX_FLAGS, PF_PAGEEXEC, PF_MPROTECT, PF_RANDMMAP], [], - [AC_MSG_ERROR(["Missing necessary define's in gelf.h"])], + [ + CFLAGS+=" -DNEED_PAX_DECLS" + ], [[#include <gelf.h>]] ) CFLAGS+=" -DPTPAX" ], [ - CFLAGS+=" -UPTPAX" + CFLAGS+=" -UPTPAX -DNEED_PAX_DECLS" ] ) |