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| author | Sergei Trofimovich <slyfox@gentoo.org> | 2021-06-26 22:26:52 +0100 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2021-06-26 17:26:52 -0400 |
| commit | f792adb61a27aa2a7d24573b956ce29ebdb82e03 (patch) | |
| tree | 22550a5cb633c129c8e7f00b5bd892fa75da4b4b /configure.ac | |
| parent | 9cf15b3a284d8e79f3673b8743d4157739df5d36 (diff) | |
| download | libffi-f792adb61a27aa2a7d24573b956ce29ebdb82e03.tar.gz | |
configure.ac: allow user to specify READELF (#646)
Before the change with x86_64-pc-linux-gnu cross-compiler
installed the configure was not able to find cross-readelf:
```
$ ./configure --host=x86_64-pc-linux-gnu
...
checking whether .eh_frame section should be read-only... .././configure: line 19540: readelf: command not found
yes
...
```
The change uses AC_CHECK_TOOL to automatically seatch for ${host}-readelf,
readelf. And as a bonus it also allows user to override readelf with
something like READELF=llvm-readelf.
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/configure.ac b/configure.ac index fea0242..21d4f85 100644 --- a/configure.ac +++ b/configure.ac @@ -41,6 +41,8 @@ AM_PROG_CC_C_O AC_PROG_LIBTOOL AC_CONFIG_MACRO_DIR([m4]) +AC_CHECK_TOOL(READELF, readelf) + # Test for 64-bit build. AC_CHECK_SIZEOF([size_t]) @@ -271,7 +273,7 @@ if test "x$GCC" = "xyes"; then libffi_cv_ro_eh_frame=yes echo 'extern void foo (void); void bar (void) { foo (); foo (); }' > conftest.c if $CC $CFLAGS -c -fpic -fexceptions $libffi_cv_no_lto -o conftest.o conftest.c > /dev/null 2>&1; then - if readelf -WS conftest.o | grep -q -n 'eh_frame .* WA'; then + if $READELF -WS conftest.o | grep -q -n 'eh_frame .* WA'; then libffi_cv_ro_eh_frame=no fi fi |