| Patrick Williams | d8c66bc | 2016-06-20 12:57:21 -0500 | [diff] [blame] | 1 | From 7b40212ed6c0c9fe4efe51f31bccd3d9f892f238 Mon Sep 17 00:00:00 2001 |
| 2 | From: Khem Raj <raj.khem@gmail.com> |
| 3 | Date: Fri, 29 Mar 2013 09:20:50 +0400 |
| 4 | Subject: [PATCH 19/46] libgcc-sjlj-check |
| 5 | |
| 6 | ac_fn_c_try_compile doesnt seem to keep the intermediate files |
| 7 | which are needed for sjlj test to pass since it greps into the |
| 8 | generated file. So we run the compiler command using AC_TRY_COMMAND |
| 9 | which then generates the needed .s file |
| 10 | |
| 11 | Signed-off-by: Khem Raj <raj.khem@gmail.com> |
| 12 | |
| 13 | Upstream-Status: Pending |
| 14 | --- |
| 15 | libgcc/configure | 10 ++++++---- |
| 16 | libgcc/configure.ac | 10 ++++------ |
| 17 | 2 files changed, 10 insertions(+), 10 deletions(-) |
| 18 | |
| 19 | diff --git a/libgcc/configure b/libgcc/configure |
| 20 | index 203d384..6aef3e7 100644 |
| 21 | --- a/libgcc/configure |
| 22 | +++ b/libgcc/configure |
| 23 | @@ -4570,17 +4570,19 @@ void foo () |
| 24 | } |
| 25 | |
| 26 | _ACEOF |
| 27 | -CFLAGS_hold=$CFLAGS |
| 28 | -CFLAGS="--save-temps -fexceptions" |
| 29 | libgcc_cv_lib_sjlj_exceptions=unknown |
| 30 | -if ac_fn_c_try_compile; then : |
| 31 | +if { ac_try='${CC-cc} -fexceptions -S conftest.c -o conftest.s 1>&5' |
| 32 | + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 |
| 33 | + (eval $ac_try) 2>&5 |
| 34 | + ac_status=$? |
| 35 | + $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 |
| 36 | + test $ac_status = 0; }; }; then |
| 37 | if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1; then |
| 38 | libgcc_cv_lib_sjlj_exceptions=yes |
| 39 | elif grep _Unwind_Resume conftest.s >/dev/null 2>&1; then |
| 40 | libgcc_cv_lib_sjlj_exceptions=no |
| 41 | fi |
| 42 | fi |
| 43 | -CFLAGS=$CFLAGS_hold |
| 44 | rm -f conftest* |
| 45 | |
| 46 | fi |
| 47 | diff --git a/libgcc/configure.ac b/libgcc/configure.ac |
| 48 | index a10a952..cc324f3 100644 |
| 49 | --- a/libgcc/configure.ac |
| 50 | +++ b/libgcc/configure.ac |
| 51 | @@ -255,16 +255,14 @@ void foo () |
| 52 | bar(); |
| 53 | } |
| 54 | ])]) |
| 55 | -CFLAGS_hold=$CFLAGS |
| 56 | -CFLAGS="--save-temps -fexceptions" |
| 57 | libgcc_cv_lib_sjlj_exceptions=unknown |
| 58 | -AS_IF([ac_fn_c_try_compile], |
| 59 | - [if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1; then |
| 60 | +if AC_TRY_COMMAND(${CC-cc} -fexceptions -S conftest.c -o conftest.s 1>&AS_MESSAGE_LOG_FD); then |
| 61 | + if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1; then |
| 62 | libgcc_cv_lib_sjlj_exceptions=yes |
| 63 | elif grep _Unwind_Resume conftest.s >/dev/null 2>&1; then |
| 64 | libgcc_cv_lib_sjlj_exceptions=no |
| 65 | - fi]) |
| 66 | -CFLAGS=$CFLAGS_hold |
| 67 | + fi |
| 68 | +fi |
| 69 | rm -f conftest* |
| 70 | ]) |
| 71 | |
| 72 | -- |
| 73 | 2.6.3 |
| 74 | |