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| author | Ben Gamari <bgamari.foss@gmail.com> | 2016-11-10 13:18:09 -0500 |
|---|---|---|
| committer | Ben Gamari <ben@smart-cactus.org> | 2016-11-10 13:21:09 -0500 |
| commit | bae4a55b1fb403f610b4b55a1b6fb3f03e9c2026 (patch) | |
| tree | 114191a265045a30ea86dcaa81e8e9c107fca41a /aclocal.m4 | |
| parent | 9030d8e4dc321dbcd32baae33f150b4e7c8ed141 (diff) | |
| download | haskell-bae4a55b1fb403f610b4b55a1b6fb3f03e9c2026.tar.gz | |
Pass -no-pie to GCC
Certain distributions (e.g. Debian and Ubuntu) have enabled PIE be
default in their GCC packaging. This breaks our abuse of GCC as a linker
which requires that we pass -Wl,-r, which is incompatible with
PIE (since the former implies that we are generating a relocatable
object file and the latter an executable).
Test Plan: Validate
Reviewers: hvr, austin
Subscribers: rwbarton, thomie, erikd
Differential Revision: https://phabricator.haskell.org/D2691
GHC Trac Issues: #12759
Diffstat (limited to 'aclocal.m4')
| -rw-r--r-- | aclocal.m4 | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/aclocal.m4 b/aclocal.m4 index df9d42028d..3a35fe9b64 100644 --- a/aclocal.m4 +++ b/aclocal.m4 @@ -1322,6 +1322,24 @@ AC_SUBST(GccIsClang) rm -f conftest.txt ]) +# FP_GCC_SUPPORTS_NO_PIE +# ---------------------- +# Does gcc support the -no-pie option? If so we should pass it to gcc when +# joining objects since -pie may be enabled by default. +AC_DEFUN([FP_GCC_SUPPORTS_NO_PIE], +[ + AC_REQUIRE([AC_PROG_CC]) + AC_MSG_CHECKING([whether GCC supports -no-pie]) + echo 'int main() { return 0; }' > conftest.c + if ${CC-cc} -o conftest -no-pie conftest.c > /dev/null 2>&1; then + AC_DEFINE(GCC_SUPPORTS_NO_PIE, 1, [gcc supports -no-pie]) + AC_MSG_RESULT([yes]) + else + AC_MSG_RESULT([no]) + fi + rm -f conftest.c conftest.o conftest +]) + dnl Small feature test for perl version. Assumes PerlCmd dnl contains path to perl binary. dnl |