f4c093f2d0
Fixes: http://autobuild.buildroot.org/results/277/277038de62d6262576a63b213374a33357a8333b/ Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
39 lines
1.2 KiB
Diff
39 lines
1.2 KiB
Diff
Fix build with gcc 4.9
|
|
|
|
cairo fails to build with gcc 4.9 due to a bad interaction of cairo
|
|
modules with the LTO mechanism. The suggested workaround is to pass
|
|
-ffat-lto-objects. See
|
|
https://bugs.freedesktop.org/show_bug.cgi?id=77060 for the upstream
|
|
bug report, and
|
|
https://bugs.archlinux.org/task/40313?project=1&openedfrom=-1+week for
|
|
the ArchLinux bug report.
|
|
|
|
This patch passes -ffat-lto-objects when gcc understands this option,
|
|
in order to provide compatibility with gcc versions older than 4.8,
|
|
which did not provide this option, but are anyway unaffected by the
|
|
issue.
|
|
|
|
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
|
|
|
|
Index: b/configure.ac
|
|
===================================================================
|
|
--- a/configure.ac
|
|
+++ b/configure.ac
|
|
@@ -37,6 +37,16 @@
|
|
m4_include(build/configure.ac.pthread) dnl checks for pthreads
|
|
AC_CACHE_SAVE
|
|
|
|
+old_cflags=$CFLAGS
|
|
+CFLAGS=-ffat-lto-objects
|
|
+AC_MSG_CHECKING([whether CC supports -ffat-lto-objects])
|
|
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
|
|
+ [AC_MSG_RESULT([yes])]
|
|
+ [LTO_CFLAGS=-ffat-lto-objects],
|
|
+ [AC_MSG_RESULT([no])]
|
|
+)
|
|
+CFLAGS="${old_CFLAGS} ${LTO_CFLAGS}"
|
|
+
|
|
dnl ===========================================================================
|
|
|
|
AC_CHECK_LIB(z, compress,
|