From 7413962d04a4f1864db684a2d9a49d043322f299 Mon Sep 17 00:00:00 2001 From: Richard Guenther Date: Sat, 2 Jan 2010 14:13:37 +0000 Subject: re PR bootstrap/41529 (LTO configuration should detect if the target is ELF) 2010-01-02 Richard Guenther PR lto/41529 * configure.ac: Include config/elf.m4. Disable LTO if not builting for an elf target. * configure: Regenerate. config/ * elf.m4: New file. From-SVN: r155565 --- configure.ac | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'configure.ac') diff --git a/configure.ac b/configure.ac index dbc1565ec2a..9a7123227cd 100644 --- a/configure.ac +++ b/configure.ac @@ -22,6 +22,7 @@ m4_include(config/acx.m4) m4_include(config/override.m4) m4_include(config/proginstall.m4) +m4_include(config/elf.m4) AC_INIT(move-if-change) AC_PREREQ(2.64) @@ -1601,6 +1602,16 @@ AC_ARG_ENABLE(lto, enable_lto=$enableval, enable_lto=yes; default_enable_lto=yes) +ACX_ELF_TARGET_IFELSE([], +if test x"$default_enable_lto" = x"yes" ; then + enable_lto=no +else + if test x"$enable_lto" = x"yes"; then + AC_MSG_ERROR([LTO support requires an ELF target.]) + fi +fi +default_enable_lto=no) + if test x"$enable_lto" = x"yes" ; then # Make sure that libelf.h and gelf.h are available. AC_ARG_WITH(libelf, [ --with-libelf=PATH Specify prefix directory for the installed libelf package -- cgit v1.2.1