diff options
Diffstat (limited to 'meta/recipes-devtools/flex/flex/check-funcs.patch')
| -rw-r--r-- | meta/recipes-devtools/flex/flex/check-funcs.patch | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/meta/recipes-devtools/flex/flex/check-funcs.patch b/meta/recipes-devtools/flex/flex/check-funcs.patch new file mode 100644 index 0000000000..762275e7f8 --- /dev/null +++ b/meta/recipes-devtools/flex/flex/check-funcs.patch @@ -0,0 +1,67 @@ +Subject: build: Move dnl comments out of AC_CHECK_FUNCS + +Due to a bug, autoheader (2.69) will treat M4 dnl comments in a quoted +argument of AC_CHECK_FUNCS as function tokens and generate a lot of +redundant and useless HAVE_* macros in config.h.in. +(Examples: HAVE_DNL, HAVE_AVAILABLE_, HAVE_BY) + +It seems to be this commit dbb4e94dc7bacbcfd4acef4f085ef752fe1aa03f of +mine that revealed this autoheader bug, and the affected config.h.in +had been shipped within flex-2.6.4 release tarball. + +I have reported the autoheader bug here: +<https://lists.gnu.org/archive/html/bug-autoconf/2018-02/msg00005.html> + +As a workaround, let's move comments out of AC_CHECK_FUNCS. + +Upstream-Status: Backport +Signed-off-by: Ross Burton <ross.burton@arm.com> + +Signed-off-by: Kang-Che Sung <explorer09@gmail.com> +Signed-off-by: Zang Ruochen <zangrc.fnst@cn.fujitsu.com> +--- + configure.ac | 28 +++++++++++++--------------- + 1 file changed, 13 insertions(+), 15 deletions(-) + +diff --git a/configure.ac b/configure.ac +index 55e774b..5ea3a93 100644 +--- a/configure.ac ++++ b/configure.ac +@@ -153,21 +153,19 @@ AC_FUNC_REALLOC + AS_IF([test "$cross_compiling" = yes], + AC_MSG_WARN([result $ac_cv_func_realloc_0_nonnull guessed because of cross compilation])) + +-AC_CHECK_FUNCS([dup2 dnl +-memset dnl +-regcomp dnl +-strcasecmp dnl +-strchr dnl +-strdup dnl +-strtol dnl +-], [], [AC_MSG_ERROR(required library function not found on your system)]) +- +-# Optional library functions +-AC_CHECK_FUNCS([dnl +-pow dnl Used only by "examples/manual/expr" +-setlocale dnl Needed only if NLS is enabled +-reallocarray dnl OpenBSD function. We have replacement if not available. +-]) ++dnl Autoheader (<= 2.69) bug: "dnl" comments in a quoted argument of ++dnl AC_CHECK_FUNCS will expand wierdly in config.h.in. ++dnl (https://lists.gnu.org/archive/html/bug-autoconf/2018-02/msg00005.html) ++ ++AC_CHECK_FUNCS([dup2 memset regcomp strcasecmp strchr strdup strtol], [], ++ [AC_MSG_ERROR(required library function not found on your system)]) ++ ++# Optional library functions: ++# pow - Used only by "examples/manual/expr". ++# setlocale - Needed only if NLS is enabled. ++# reallocarr - NetBSD function. Use reallocarray if not available. ++# reallocarray - OpenBSD function. We have replacement if not available. ++AC_CHECK_FUNCS([pow setlocale reallocarr reallocarray]) + + AC_CONFIG_FILES( + Makefile +-- +2.25.1 + |