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authorLudovic Courtès <ludo@gnu.org>2021-07-01 23:00:19 +0200
committerCarlos O'Donell <carlos@redhat.com>2022-10-28 17:19:02 -0400
commit361d6454c034a920f2c96517c277990d390b9652 (patch)
treefdf2c6f6d595e23f9cfe9355c4afc08d134508bc /aclocal.m4
parent8c77e26ba8b360c851b2b9485bb4431aacc51ad1 (diff)
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Correctly determine libc.so 'OUTPUT_FORMAT' when cross-compiling.
Commit 87d583c6e8cd0e49f64da76636ebeec033298b4d replaces the sed script with an "objdump -f" invocation to determine the 'OUTPUT_FORMAT' bit of the libc.so linker script. However, when cross-compiling, for example from x86_64-linux-gnu to aarch64-linux-gnu, "objdump -f" would report the wrong format ("elf64-little"). Conversely, "aarch64-linux-gnu-objdump -f" reports "elf64-littleaarch64" as expected. This patch changes 'configure.ac' to use AC_CHECK_TOOL rather than '$CC -print-prog-name=objdump' to determine the value of the OBJDUMP variable. That way, OBJDUMP is set to TRIPLET-objdump when cross-compiling for TRIPLET. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Tested-by: Carlos O'Donell <carlos@redhat.com>
Diffstat (limited to 'aclocal.m4')
-rw-r--r--aclocal.m42
1 files changed, 0 insertions, 2 deletions
diff --git a/aclocal.m4 b/aclocal.m4
index 3b4df4a..531b11c 100644
--- a/aclocal.m4
+++ b/aclocal.m4
@@ -122,8 +122,6 @@ AS=`$CC -print-prog-name=as`
LD=`$CC -print-prog-name=$LDNAME`
AR=`$CC -print-prog-name=ar`
AC_SUBST(AR)
-OBJDUMP=`$CC -print-prog-name=objdump`
-AC_SUBST(OBJDUMP)
OBJCOPY=`$CC -print-prog-name=objcopy`
AC_SUBST(OBJCOPY)
GPROF=`$CC -print-prog-name=gprof`