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[Qemu-devel] [PATCH] scripts: add a guard macro in generated .h files
From: |
Tristan Gingold |
Subject: |
[Qemu-devel] [PATCH] scripts: add a guard macro in generated .h files |
Date: |
Mon, 7 Feb 2011 16:21:40 +0100 |
To avoid redefinition warnings.
Signed-off-by: Tristan Gingold <address@hidden>
---
rules.mak | 2 +-
scripts/create_config | 12 ++++++++++++
2 files changed, 13 insertions(+), 1 deletions(-)
diff --git a/rules.mak b/rules.mak
index ed59c9e..fb38f96 100644
--- a/rules.mak
+++ b/rules.mak
@@ -57,7 +57,7 @@ find-in-path = $(if $(find-string /, $1), \
@test -f $@ || cp $< $@
%.h-timestamp: %.mak
- $(call quiet-command, sh $(SRC_PATH)/scripts/create_config < $< > $@, "
GEN $*.h")
+ $(call quiet-command, sh $(SRC_PATH)/scripts/create_config $* < $< >
$@, " GEN $*.h")
@cmp $@ $*.h >/dev/null 2>&1 || cp $@ $*.h
# will delete the target of a rule if commands exit with a nonzero exit status
diff --git a/scripts/create_config b/scripts/create_config
index 0098e68..0302eab 100755
--- a/scripts/create_config
+++ b/scripts/create_config
@@ -1,7 +1,17 @@
#!/bin/sh
+if [ $# -ne 1 ]; then
+ echo "Usage: $0 filename" 2>&1
+ exit 1
+fi
+
+cond_macro=`echo $1 | tr a-z- A-Z_`_H
+
echo "/* Automatically generated by create_config - do not modify */"
+echo "#ifndef $cond_macro"
+echo "#define $cond_macro"
+
while read line; do
case $line in
@@ -101,3 +111,5 @@ case $line in
esac
done # read
+
+echo "#endif /* $cond_macro */"
--
1.7.3.GIT
- [Qemu-devel] [PATCH] scripts: add a guard macro in generated .h files,
Tristan Gingold <=