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Subject[PATCH] improve scripts/gcc-version.sh output a bit when called without args
Date
Currently, if you call scripts/gcc-version.sh without arguments it will 
generate this output :

$ sh scripts/gcc-version.sh
scripts/gcc-version.sh: line 17: -E: command not found
scripts/gcc-version.sh: line 18: -E: command not found
0000
Not too pretty. I believe this is an improvement :

$ sh scripts/gcc-version.sh
Error: No compiler specified.
Usage:
scripts/gcc-version.sh <gcc-command>

as implemented by the patch below.

Not really important, just something I noticed, cleaned up and generated a
patch for.
If you like it you can have it. If you hate it just ignore it :)


Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com>
---
scripts/gcc-version.sh | 6 ++++++
1 files changed, 6 insertions(+), 0 deletions(-)
diff --git a/scripts/gcc-version.sh b/scripts/gcc-version.sh
index bb4fbea..59a03a4 100644
--- a/scripts/gcc-version.sh
+++ b/scripts/gcc-version.sh
@@ -8,6 +8,12 @@

compiler="$*"

+if [ ${#compiler} -eq 0 ]; then
+ echo "Error: No compiler specified."
+ echo -e "Usage:\n\t$0 <gcc-command>"
+ exit 1
+fi
+
MAJOR=$(echo __GNUC__ | $compiler -E -xc - | tail -n 1)
MINOR=$(echo __GNUC_MINOR__ | $compiler -E -xc - | tail -n 1)
printf "%02d%02d\\n" $MAJOR $MINOR

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