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-rwxr-xr-xextra/scripts/install_headers.sh5
-rw-r--r--extra/scripts/unifdef.c31
-rw-r--r--extra/scripts/unifdef.h1
-rw-r--r--extra/scripts/version.h4
4 files changed, 24 insertions, 17 deletions
diff --git a/extra/scripts/install_headers.sh b/extra/scripts/install_headers.sh
index d40ae1332..8c8d715ef 100755
--- a/extra/scripts/install_headers.sh
+++ b/extra/scripts/install_headers.sh
@@ -34,7 +34,7 @@ fi
# Sanitize and copy uclibc headers
(
-# We must cd, or else we'll prepend "${srcdir}" to filenames!
+# We must cd, or else we will prepend "${srcdir}" to filenames!
cd "${srcdir}" || exit 1
find . ! -name '.' -a ! -path '*/.*' | sed -e 's/^\.\///' -e '/^config\//d' \
-e '/^config$/d'
@@ -50,13 +50,12 @@ while read -r filename; do
# Do not install libc-XXXX.h files
continue
fi
- # NB: unifdef exits with 1 if output is not
- # exactly the same as input. That's ok.
# Do not abort the script if unifdef "fails"!
# NB2: careful with sed command arguments, they contain tab character
"$top_builddir/extra/scripts/unifdef" \
-B \
-t \
+ -x 2 \
-f "$top_builddir/include/generated/unifdef_config.h" \
-U_LIBC \
-U__UCLIBC_GEN_LOCALE \
diff --git a/extra/scripts/unifdef.c b/extra/scripts/unifdef.c
index f18bea853..0f059205f 100644
--- a/extra/scripts/unifdef.c
+++ b/extra/scripts/unifdef.c
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2002 - 2013 Tony Finch <dot@dotat.at>
+ * Copyright (c) 2002 - 2014 Tony Finch <dot@dotat.at>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
@@ -207,6 +207,7 @@ static bool firstsym; /* ditto */
static int exitmode; /* exit status mode */
static int exitstat; /* program exit status */
+static bool altered; /* was this file modified? */
static void addsym1(bool, bool, char *);
static void addsym2(bool, const char *, const char *);
@@ -415,7 +416,11 @@ processinout(const char *ifn, const char *ofn)
err(2, "can't rename \"%s\" to \"%s\"", ofn, backname);
free(backname);
}
- if (replace(tempname, ofn) < 0)
+ /* leave file unmodified if unifdef made no changes */
+ if (!altered && backext == NULL) {
+ if (remove(tempname) < 0)
+ warn("can't remove \"%s\"", tempname);
+ } else if (replace(tempname, ofn) < 0)
err(2, "can't rename \"%s\" to \"%s\"", tempname, ofn);
free(tempname);
tempname = NULL;
@@ -637,6 +642,7 @@ keywordedit(const char *replacement)
{
snprintf(keyword, tline + sizeof(tline) - keyword,
"%s%s", replacement, newline);
+ altered = true;
print();
}
static void
@@ -699,7 +705,7 @@ flushline(bool keep)
} else {
if (lnblank && fputs(newline, output) == EOF)
closeio();
- exitstat = 1;
+ altered = true;
delcount += 1;
blankcount = 0;
}
@@ -751,6 +757,7 @@ process(void)
zerosyms = true;
newline = NULL;
linenum = 0;
+ altered = false;
while (lineval != LT_EOF) {
lineval = parseline();
trans_table[ifstate[depth]][lineval]();
@@ -758,6 +765,7 @@ process(void)
linenum, linetype_name[lineval],
ifstate_name[ifstate[depth]], depth);
}
+ exitstat |= altered;
}
/*
@@ -1097,14 +1105,12 @@ skiphash(void)
{
const char *cp;
- if (linestate == LS_START) {
- linenum++;
- if (fgets(tline, MAXLINE, input) == NULL) {
- if (ferror(input))
- err(2, "can't read %s", filename);
- else
- return (NULL);
- }
+ linenum++;
+ if (fgets(tline, MAXLINE, input) == NULL) {
+ if (ferror(input))
+ err(2, "can't read %s", filename);
+ else
+ return (NULL);
}
cp = skipcomment(tline);
if (linestate == LS_START && *cp == '#') {
@@ -1124,7 +1130,8 @@ skiphash(void)
static const char *
skipline(const char *cp)
{
- linestate = LS_DIRTY;
+ if (*cp != '\0')
+ linestate = LS_DIRTY;
while (*cp != '\0')
cp = skipcomment(cp + 1);
return (cp);
diff --git a/extra/scripts/unifdef.h b/extra/scripts/unifdef.h
index d57a8660b..276015c82 100644
--- a/extra/scripts/unifdef.h
+++ b/extra/scripts/unifdef.h
@@ -37,6 +37,7 @@
/* Avoid err.h since this are non-standard BSD extensions */
#define vwarnx(fmt, args) ({ fprintf(stderr, "unifdef: "); vfprintf(stderr, fmt, args); fprintf(stderr, "\n"); })
#define warnx(fmt, args...) fprintf(stderr, "unifdef: " fmt "\n", ## args)
+#define warn(fmt, args...) warnx(fmt ": %s", ## args, strerror(errno))
#define errx(exit_code, fmt, args...) ({ warnx(fmt, ## args); exit(exit_code); })
#define err(exit_code, fmt, args...) errx(exit_code, fmt ": %s", ## args, strerror(errno))
diff --git a/extra/scripts/version.h b/extra/scripts/version.h
index ed3e7c0fd..5636b1b81 100644
--- a/extra/scripts/version.h
+++ b/extra/scripts/version.h
@@ -1,2 +1,2 @@
-"@(#) $Version: unifdef-2.9.5.55501a6 $\n"
-"@(#) $Date: 2013-06-12 15:50:39 +0100 $\n"
+"@(#) $Version: unifdef-2.10.4.1542ea4 $\n"
+"@(#) $Date: 2014-01-07 22:32:21 +0000 $\n"