Remove all unused program, header, and function checks to speed up the
configure script.
With some exceptions, the AC_PROG_*, AC_CHECK_HEADERS, and
AC_CHECK_FUNCS macros in configure.ac were not doing much. If a
program, header, or function was missing, the configure script
continued without error and no alternative behavior was selected
(e.g., enable a replacement function or disable an optional feature).
Rather than test every possible utility, header, or function that
might be used, a better approach is to:
* Assume the platform follows a standard or standards (e.g., C99,
POSIX Issue 7, 2013 edition).
* Where convenient, test to see if the platform at least appears to
conform to the standard(s) (e.g., AC_PROG_CC_C99).
* Don't bother testing for specific standard behavior unless the
software fails to build or function properly on a platform of
interest (due to lack of standard conformance).
* Add autoconf tests for any behavior not completely specified by
the standard(s) (e.g., MySQL).
Note that this removes some MySQL header and function tests. The
removed tests are not necessary because there are already adequate
MySQL tests (involving the mysql_config utility).
---
configure.ac | 20 +-------------------
1 file changed, 1 insertion(+), 19 deletions(-)
diff --git a/configure.ac b/configure.ac
index 7dfcb67..01a561d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -52,13 +52,8 @@ AC_SUBST([MIN_PYTHON_VERSION])
AM_MAINTAINER_MODE
: ${CFLAGS=""}
# Checks for programs.
-#AC_PROG_CXX
AC_PROG_CC
-AM_PROG_CC_C_O
-#AC_PROG_AWK
-AC_PROG_MAKE_SET
AC_PROG_RANLIB
-#AC_PROG_LIBTOOL
AC_PROG_SED
AM_PATH_PYTHON([$MIN_PYTHON_VERSION])
AC_PROG_LN_S
@@ -244,7 +239,6 @@ AC_SEARCH_LIBS([v3_addr_validate_path], [crypto],[],[
# Checks for header files.
AC_HEADER_STDC
AC_HEADER_SYS_WAIT
-AC_CHECK_HEADERS([arpa/inet.h fcntl.h limits.h memory.h my_global.h mysql.h
netdb.h netinet/in.h semaphore.h stdbool.h stdlib.h string.h strings.h
sys/file.h sys/ioctl.h sys/socket.h sys/time.h syslog.h termios.h unistd.h
wchar.h])
# Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
@@ -258,19 +252,7 @@ AC_HEADER_TIME
AC_STRUCT_TM
# Checks for library functions.
-AC_FUNC_ERROR_AT_LINE
-AC_FUNC_FORK
-AC_FUNC_GETPGRP
-AC_PROG_GCC_TRADITIONAL
-#AC_FUNC_MALLOC
-AC_FUNC_MEMCMP
-AC_FUNC_MMAP
-#AC_FUNC_REALLOC
-AC_FUNC_SELECT_ARGTYPES
-AC_TYPE_SIGNAL
-AC_FUNC_STAT
-AC_FUNC_VPRINTF
-AC_CHECK_FUNCS([alarm bzero clock_gettime dup2 getcwd gethostbyaddr
gethostbyname gethostname getline getpass memmove memset mkdir munmap
mysql_real_connect select sem_timedwait socket strcasecmp strchr strdup
strerror strncasecmp strpbrk strrchr strstr strtol strtoul strtoull])
+AC_CHECK_FUNCS([clock_gettime getline sem_timedwait])
if test "$ac_cv_func_getline" != yes; then
AC_MSG_ERROR([The getline() function from POSIX 2008 is required.])
fi
--
2.4.5
------------------------------------------------------------------------------
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