From f792adb61a27aa2a7d24573b956ce29ebdb82e03 Mon Sep 17 00:00:00 2001 From: Sergei Trofimovich Date: Sat, 26 Jun 2021 22:26:52 +0100 Subject: 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 ${host}-readelf, readelf. And as a bonus it also allows user to override readelf with something like READELF=llvm-readelf. Signed-off-by: Sergei Trofimovich --- configure.ac | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'configure.ac') diff --git a/configure.ac b/configure.ac index fea0242..21d4f85 100644 --- a/configure.ac +++ b/configure.ac @@ -41,6 +41,8 @@ AM_PROG_CC_C_O AC_PROG_LIBTOOL AC_CONFIG_MACRO_DIR([m4]) +AC_CHECK_TOOL(READELF, readelf) + # Test for 64-bit build. AC_CHECK_SIZEOF([size_t]) @@ -271,7 +273,7 @@ if test "x$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 -- cgit v1.2.1