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-rw-r--r--config_h.SH9
1 files changed, 7 insertions, 2 deletions
diff --git a/config_h.SH b/config_h.SH
index bb951ac371..e9c9d6df9d 100644
--- a/config_h.SH
+++ b/config_h.SH
@@ -20,8 +20,11 @@ esac
case "$0" in
*/*) cd `expr X$0 : 'X\(.*\)/'` ;;
esac
-echo "Extracting $CONFIG_H (with variable substitutions)"
-sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un-def!#undef!'
+case "$CONFIG_H" in
+already-done) echo "Not re-extracting config.h" ;;
+*)
+ echo "Extracting $CONFIG_H (with variable substitutions)"
+ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un-def!#undef!'
/*
* This file was produced by running the config_h.SH script, which
* gets its values from $CONFIG_SH, which is generally produced by
@@ -4485,3 +4488,5 @@ sed <<!GROK!THIS! >$CONFIG_H -e 's!^#undef\(.*/\)\*!/\*#define\1 \*!' -e 's!^#un
#endif
!GROK!THIS!
+ ;;
+esac