diff options
Diffstat (limited to 'Build/source/libs/libpng/libpng-src/contrib/tools/pngcp.c')
-rw-r--r-- | Build/source/libs/libpng/libpng-src/contrib/tools/pngcp.c | 32 |
1 files changed, 11 insertions, 21 deletions
diff --git a/Build/source/libs/libpng/libpng-src/contrib/tools/pngcp.c b/Build/source/libs/libpng/libpng-src/contrib/tools/pngcp.c index 579e28d2b8a..cf621fa5bf5 100644 --- a/Build/source/libs/libpng/libpng-src/contrib/tools/pngcp.c +++ b/Build/source/libs/libpng/libpng-src/contrib/tools/pngcp.c @@ -1,6 +1,6 @@ /* pngcp.c * - * Copyright (c) 2016,2022 John Cunningham Bowler + * Copyright (c) 2016,2022,2024 John Cunningham Bowler * * This code is released under the libpng license. * For conditions of distribution and use, see the disclaimer @@ -88,16 +88,6 @@ # define voidcast(type, value) (value) #endif /* __cplusplus */ -#ifdef __GNUC__ - /* Many versions of GCC erroneously report that local variables unmodified - * within the scope of a setjmp may be clobbered. This hacks round the - * problem (sometimes) without harming other compilers. - */ -# define gv volatile -#else -# define gv -#endif - /* 'CLOCK_PROCESS_CPUTIME_ID' is one of the clock timers for clock_gettime. It * need not be supported even when clock_gettime is available. It returns the * 'CPU' time the process has consumed. 'CPU' time is assumed to include time @@ -395,6 +385,7 @@ struct display { jmp_buf error_return; /* Where to go to on error */ unsigned int errset; /* error_return is set */ + int errlevel; /* error level from longjmp */ const char *operation; /* What is happening */ const char *filename; /* The name of the original file */ @@ -634,7 +625,10 @@ display_log(struct display *dp, error_level level, const char *fmt, ...) if (level > APP_FAIL || (level > ERRORS && !(dp->options & CONTINUE))) { if (dp->errset) + { + dp->errlevel = level; longjmp(dp->error_return, level); + } else exit(99); @@ -2318,14 +2312,9 @@ cp_one_file(struct display *dp, const char *filename, const char *destname) } static int -cppng(struct display *dp, const char *file, const char *gv dest) - /* Exists solely to isolate the setjmp clobbers which some versions of GCC - * erroneously generate. - */ +cppng(struct display *dp, const char *file, const char *dest) { - int ret = setjmp(dp->error_return); - - if (ret == 0) + if (setjmp(dp->error_return) == 0) { dp->errset = 1; cp_one_file(dp, file, dest); @@ -2337,10 +2326,11 @@ cppng(struct display *dp, const char *file, const char *gv dest) { dp->errset = 0; - if (ret < ERRORS) /* shouldn't longjmp on warnings */ - display_log(dp, INTERNAL_ERROR, "unexpected return code %d", ret); + if (dp->errlevel < ERRORS) /* shouldn't longjmp on warnings */ + display_log(dp, INTERNAL_ERROR, "unexpected return code %d", + dp->errlevel); - return ret; + return dp->errlevel; } } |