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portability problem with autoconf 2.49c on Solaris 7
From: |
Paul Eggert |
Subject: |
portability problem with autoconf 2.49c on Solaris 7 |
Date: |
Mon, 29 Jan 2001 22:27:03 -0800 (PST) |
I ran into a portability problem when running autoconf 2.49c on Solaris 7.
Solaris 7's /bin/sh 'echo' interprets backslashes, e.g.:
$ echo 'a\\b'
a\b
When I ran autoheader against fileutils 4.0.38, it generated the following
in config.h.in:
#if FILESYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR
# define ISSLASH(C) ((C) == '/' || (C) == '\')
#else
# define ISSLASH(C) ((C) == '/')
#endif
Notice the '\'. It should have been '\\', but an "echo" inside
autoheader turned the '\\' into '\'.
Here is a patch. Unfortunately, I suspect that this slows autoheader
down considerably.
2001-01-29 Paul Eggert <address@hidden>
* autoheader.sh: Don't pass a string to 'echo' that might
possibly contain backslashes.
===================================================================
RCS file: autoheader.sh,v
retrieving revision 2.49.3.0
retrieving revision 2.49.3.1
diff -pu -r2.49.3.0 -r2.49.3.1
--- autoheader.sh 2001/01/16 10:19:56 2.49.3.0
+++ autoheader.sh 2001/01/30 06:16:59 2.49.3.1
@@ -310,8 +310,11 @@ test -r $localdir/acconfig.h &&
# Dump the templates from `configure.ac'.
for verb in `(set) 2>&1 | sed -n -e '/^ac_verbatim/s/^\([^=]*\)=.*$/\1/p' |
sort`; do
- echo >>$tmp/config.hin
- eval echo '"${'$verb'}"' >>$tmp/config.hin
+ eval value=\$$verb
+ cat >>$tmp/config.hin <<EOF
+
+$value
+EOF
done
# Handle the case where @BOTTOM@ is the first line of acconfig.h.
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