![Philippe Proulx](/assets/img/avatar_default.png)
Since Babeltrace 1.4, there is support for printing debug information along with compatible traces and event records. Babeltrace needs elfutils in this case. Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com> [Thomas: - add better description for 0002-m4-ax_lib_elfutils.m4-add-cache-variable.patch - use automatic dependency on elfutils rather than a very complicated Config.in symbol] Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
78 lines
2.4 KiB
Diff
78 lines
2.4 KiB
Diff
From 697ab0905c59561562dc52cd3b925781e07814f3 Mon Sep 17 00:00:00 2001
|
|
From: Philippe Proulx <eeppeliteloop@gmail.com>
|
|
Date: Wed, 2 Nov 2016 01:40:12 -0400
|
|
Subject: [PATCH] m4/ax_lib_elfutils.m4: add cache variable
|
|
|
|
This patch adds an autoconf cache variable to override the
|
|
AC_RUN_IFELSE() test result when cross-compiling.
|
|
|
|
Signed-off-by: Philippe Proulx <eeppeliteloop@gmail.com>
|
|
[Philippe: grabbed from this pull request:
|
|
https://github.com/efficios/babeltrace/pull/52
|
|
]
|
|
---
|
|
m4/ax_lib_elfutils.m4 | 32 +++++++++++++++++---------------
|
|
1 file changed, 17 insertions(+), 15 deletions(-)
|
|
|
|
diff --git a/m4/ax_lib_elfutils.m4 b/m4/ax_lib_elfutils.m4
|
|
index fcfe06b..f4fcb0d 100644
|
|
--- a/m4/ax_lib_elfutils.m4
|
|
+++ b/m4/ax_lib_elfutils.m4
|
|
@@ -21,7 +21,9 @@
|
|
# WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
#
|
|
# Check the currently installed version of elfutils by using the
|
|
-# _ELFUTILS_PREREQ macro defined in elfutils/version.h.
|
|
+# `_ELFUTILS_PREREQ` macro defined in <elfutils/version.h>.
|
|
+#
|
|
+# The cache variable for this test is `bt_cv_lib_elfutils`.
|
|
#
|
|
# AX_LIB_ELFUTILS(MAJOR_VERSION, MINOR_VERSION, [ACTION-IF-TRUE], [ACTION-IF-FALSE])
|
|
# ---------------------------------------------------------------------------
|
|
@@ -29,7 +31,6 @@ AC_DEFUN([AX_LIB_ELFUTILS], [
|
|
m4_pushdef([major_version], [$1])
|
|
m4_pushdef([minor_version], [$2])
|
|
|
|
- AC_MSG_CHECKING([for elfutils version >= major_version.minor_version])
|
|
m4_if([$#], 3, [
|
|
m4_pushdef([true_action], [$3])
|
|
], [
|
|
@@ -43,20 +44,21 @@ AC_DEFUN([AX_LIB_ELFUTILS], [
|
|
AC_MSG_ERROR(elfutils >= major_version.minor_version is required)])
|
|
])
|
|
|
|
- AC_RUN_IFELSE([
|
|
- AC_LANG_SOURCE([
|
|
- #include <stdlib.h>
|
|
- #include <elfutils/version.h>
|
|
+ AC_CACHE_CHECK(
|
|
+ [for elfutils version >= major_version.minor_version],
|
|
+ [bt_cv_lib_elfutils], [
|
|
+ AC_RUN_IFELSE([AC_LANG_SOURCE([
|
|
+ #include <stdlib.h>
|
|
+ #include <elfutils/version.h>
|
|
+
|
|
+ int main(void) {
|
|
+ return _ELFUTILS_PREREQ(major_version, minor_version) ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
+ }
|
|
+ ])], [bt_cv_lib_elfutils=yes], [bt_cv_lib_elfutils=no])
|
|
+ ]
|
|
+ )
|
|
|
|
- int main(void) {
|
|
- return _ELFUTILS_PREREQ(major_version, minor_version) ? EXIT_SUCCESS : EXIT_FAILURE;
|
|
- }
|
|
- ])
|
|
- ],
|
|
- echo yes
|
|
- true_action,
|
|
- echo no
|
|
- false_action)
|
|
+ AS_IF([test "x$bt_cv_lib_elfutils" = "xyes"], [true_action], [false_action])
|
|
|
|
m4_popdef([false_action])
|
|
m4_popdef([true_action])
|
|
--
|
|
2.9.3
|
|
|