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[PATCH 1/2] Check for prefixed ar, readelf, and nm


Sometimes with cross-compile toolchains, the tools are prefixed with the
target arch. Using AC_CHECK_TOOL looks for tools named like this.

Signed-off-by: Michael Forney <mforney@mforney.org>
---
 config/eu.am           | 2 +-
 configure.ac           | 3 +++
 libasm/Makefile.am     | 2 +-
 libdw/Makefile.am      | 2 +-
 libelf/Makefile.am     | 2 +-
 tests/Makefile.am      | 6 ++++--
 tests/run-arsymtest.sh | 2 +-
 7 files changed, 12 insertions(+), 7 deletions(-)

diff --git a/config/eu.am b/config/eu.am
index 86e5a4e..38718c7 100644
--- a/config/eu.am
+++ b/config/eu.am
@@ -61,4 +61,4 @@ endif
 
 CLEANFILES = *.gcno *.gcda
 
-textrel_check = if readelf -d $@ | fgrep -q TEXTREL; then exit 1; fi
+textrel_check = if $(READELF) -d $@ | fgrep -q TEXTREL; then exit 1; fi
diff --git a/configure.ac b/configure.ac
index b4c249c..c69dd3e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -79,6 +79,9 @@ AC_PROG_CC
 AC_PROG_RANLIB
 AC_PROG_YACC
 AM_PROG_LEX
+AM_PROG_AR
+AC_CHECK_TOOL([READELF], [readelf])
+AC_CHECK_TOOL([NM], [nm])
 
 AC_CACHE_CHECK([for gcc with C99 support], ac_cv_c99, [dnl
 old_CFLAGS="$CFLAGS"
diff --git a/libasm/Makefile.am b/libasm/Makefile.am
index e16d4be..4d81536 100644
--- a/libasm/Makefile.am
+++ b/libasm/Makefile.am
@@ -69,7 +69,7 @@ libasm.so: libasm_pic.a libasm.map
 		-Wl,--version-script,$(srcdir)/libasm.map,--no-undefined \
 		-Wl,--soname,$@.$(VERSION) \
 		../libebl/libebl.a ../libelf/libelf.so  $(libasm_so_LDLIBS)
-	if readelf -d $@ | fgrep -q TEXTREL; then exit 1; fi
+	if $(READELF) -d $@ | fgrep -q TEXTREL; then exit 1; fi
 	ln -fs $@ $@.$(VERSION)
 
 install: install-am libasm.so
diff --git a/libdw/Makefile.am b/libdw/Makefile.am
index 5fef2e1..bf94560 100644
--- a/libdw/Makefile.am
+++ b/libdw/Makefile.am
@@ -113,7 +113,7 @@ libdw.so: $(srcdir)/libdw.map libdw_pic.a \
 		-Wl,--version-script,$<,--no-undefined \
 		-Wl,--whole-archive $(filter-out $<,$^) -Wl,--no-whole-archive\
 		-ldl $(zip_LIBS)
-	if readelf -d $@ | fgrep -q TEXTREL; then exit 1; fi
+	if $(READELF) -d $@ | fgrep -q TEXTREL; then exit 1; fi
 	ln -fs $@ $@.$(VERSION)
 
 install: install-am libdw.so
diff --git a/libelf/Makefile.am b/libelf/Makefile.am
index 5903ea8..4646fba 100644
--- a/libelf/Makefile.am
+++ b/libelf/Makefile.am
@@ -106,7 +106,7 @@ libelf.so: libelf_pic.a libelf.map
 	$(LINK) -shared -o $@ -Wl,--whole-archive,$<,--no-whole-archive \
 		-Wl,--version-script,$(srcdir)/libelf.map,--no-undefined \
 		-Wl,--soname,$@.$(VERSION),-z,defs,-z,relro $(libelf_so_LDLIBS)
-	if readelf -d $@ | fgrep -q TEXTREL; then exit 1; fi
+	if $(READELF) -d $@ | fgrep -q TEXTREL; then exit 1; fi
 	ln -fs $@ $@.$(VERSION)
 
 install: install-am libelf.so
diff --git a/tests/Makefile.am b/tests/Makefile.am
index d07cb0b..bc97523 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -231,7 +231,8 @@ installed_TESTS_ENVIRONMENT = libdir=$(DESTDIR)$(libdir); \
 			      export abs_srcdir; export abs_builddir; \
 			      export abs_top_builddir; \
 			      export libdir; export bindir; \
-			      export LC_ALL; export LANG; export VALGRIND_CMD;
+			      export LC_ALL; export LANG; export VALGRIND_CMD; \
+			      NM=$(NM); export NM;
 installed_LOG_COMPILER = $(abs_srcdir)/test-wrapper.sh \
 			 installed $(tests_rpath) \
 			 '$(program_transform_name)'
@@ -244,7 +245,8 @@ TESTS_ENVIRONMENT = LC_ALL=C; LANG=C; VALGRIND_CMD=$(valgrind_cmd); \
 		    abs_top_builddir=$(abs_top_builddir); \
 		    export abs_srcdir; export abs_builddir; \
 		    export abs_top_builddir; \
-		    export LC_ALL; export LANG; export VALGRIND_CMD;
+		    export LC_ALL; export LANG; export VALGRIND_CMD; \
+		    NM=$(NM); export NM;
 LOG_COMPILER = $(abs_srcdir)/test-wrapper.sh \
 	       $(abs_top_builddir)/libdw:$(abs_top_builddir)/backends:$(abs_top_builddir)/libelf:$(abs_top_builddir)/libasm
 
diff --git a/tests/run-arsymtest.sh b/tests/run-arsymtest.sh
index dc016e1..b0fdfcd 100755
--- a/tests/run-arsymtest.sh
+++ b/tests/run-arsymtest.sh
@@ -28,7 +28,7 @@ tempfiles $okfile $tmpfile $testfile
 result=77
 if test -f $lib; then
     # Generate list using `nm' we check against.
-    nm -s $lib |
+    ${NM} -s $lib |
     sed -e '1,/^Arch/d' -e '/^$/,$d' |
     sort > $okfile
 
-- 
1.8.4.1


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