Fix: extra-version-git.sh redirect stderr to /dev/null

Running make in a git repo that does not contain any tag prints:

fatal: No names found, cannot describe anything.

in the make and make clean outputs.

It's fine to have no tag name available (extra-version-git.sh will
return the value 0), but we should not print an error in the make
output. Redirect this error to /dev/null.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Suggested-by: Michael Jeanson <mjeanson@efficios.com>

diff --git a/extra-version-git.sh b/extra-version-git.sh
index e5a3e176699d59d956d550318ff0bf97adfa27d6..0f1a985771495224e8ab30d41a3847467dab534d 100755 (executable)
--- a/extra-version-git.sh
+++ b/extra-version-git.sh
@@ -7,7 +7,7 @@ TOP_LTTNG_MODULES_DIR="$1"
 GIT_VERSION="0"
 
 if test -x "$(which git 2>&1;true)" && test -r "${TOP_LTTNG_MODULES_DIR}/.git"; then
-       GIT_VERSION_STR="$(cd "${TOP_LTTNG_MODULES_DIR}" && git describe --tags --dirty)"
+       GIT_VERSION_STR="$(cd "${TOP_LTTNG_MODULES_DIR}" && git describe --tags --dirty 2> /dev/null)"
        GIT_CURRENT_TAG="$(cd "${TOP_LTTNG_MODULES_DIR}" && git describe --tags --exact-match --match="v[0-9]*" HEAD 2> /dev/null)"
 
        GIT_VERSION="${GIT_VERSION_STR}"