When configure detects some NO_XXX or NEEDS_XXX is unneeded, unset this variable (actually set it to empty string). This allow autodetection to override the default set in Makefile. Suggested-by: Junio C Hamano <junkio@xxxxxxx> Signed-off-by: Jakub Narebski <jnareb@xxxxxxxxx> --- configure.ac | 49 +++++++++++++++++++++++++++++++++---------------- 1 files changed, 33 insertions(+), 16 deletions(-) diff --git a/configure.ac b/configure.ac index 6557bd2..74984e1 100644 --- a/configure.ac +++ b/configure.ac @@ -154,31 +154,36 @@ AC_MSG_NOTICE([CHECKS for libraries]) # # Define NO_OPENSSL environment variable if you do not have OpenSSL. # Define NEEDS_SSL_WITH_CRYPTO if you need -lcrypto with -lssl (Darwin). -AC_CHECK_LIB([crypto], [SHA1_Init],[], +AC_CHECK_LIB([crypto], [SHA1_Init], +[GIT_CONF_APPEND_LINE(NEEDS_SSL_WITH_CRYPTO=)], [AC_CHECK_LIB([ssl], [SHA1_Init], - [GIT_CONF_APPEND_LINE(NEEDS_SSL_WITH_CRYPTO=YesPlease)], + [GIT_CONF_APPEND_LINE(NEEDS_SSL_WITH_CRYPTO=YesPlease) + GIT_CONF_APPEND_LINE(NEEDS_SSL_WITH_CRYPTO=)], [GIT_CONF_APPEND_LINE(NO_OPENSSL=YesPlease)])]) # # Define NO_CURL if you do not have curl installed. git-http-pull and # git-http-push are not built, and you cannot use http:// and https:// # transports. -AC_CHECK_LIB([curl], [curl_global_init],[], +AC_CHECK_LIB([curl], [curl_global_init], +[GIT_CONF_APPEND_LINE(NO_CURL=)], [GIT_CONF_APPEND_LINE(NO_CURL=YesPlease)]) # # Define NO_EXPAT if you do not have expat installed. git-http-push is # not built, and you cannot push using http:// and https:// transports. -AC_CHECK_LIB([expat], [XML_ParserCreate],[], +AC_CHECK_LIB([expat], [XML_ParserCreate], +[GIT_CONF_APPEND_LINE(NO_EXPAT=)], [GIT_CONF_APPEND_LINE(NO_EXPAT=YesPlease)]) # # Define NEEDS_LIBICONV if linking with libc is not enough (Darwin). -AC_CHECK_LIB([c], [iconv],[], +AC_CHECK_LIB([c], [iconv], +[GIT_CONF_APPEND_LINE(NEEDS_LIBICONV=)], [GIT_CONF_APPEND_LINE(NEEDS_LIBICONV=YesPlease)]) # # Define NEEDS_SOCKET if linking with libc is not enough (SunOS, # Patrick Mauritz). -AC_CHECK_LIB([c], [socket],[], -[AC_CHECK_LIB([socket],[socket], - [GIT_CONF_APPEND_LINE(NEEDS_SOCKET=YesPlease)],[])]) +AC_CHECK_LIB([c], [socket], +[GIT_CONF_APPEND_LINE(NEEDS_SOCKET=)], +[GIT_CONF_APPEND_LINE(NEEDS_SOCKET=YesPlease)]) ## Checks for header files. @@ -188,24 +193,28 @@ ## Checks for typedefs, structures, and AC_MSG_NOTICE([CHECKS for typedefs, structures, and compiler characteristics]) # # Define NO_D_INO_IN_DIRENT if you don't have d_ino in your struct dirent. -AC_CHECK_MEMBER(struct dirent.d_ino,[], +AC_CHECK_MEMBER(struct dirent.d_ino, +[GIT_CONF_APPEND_LINE(NO_D_INO_IN_DIRENT=)], [GIT_CONF_APPEND_LINE(NO_D_INO_IN_DIRENT=YesPlease)], [#include <dirent.h>]) # # Define NO_D_TYPE_IN_DIRENT if your platform defines DT_UNKNOWN but lacks # d_type in struct dirent (latest Cygwin -- will be fixed soonish). -AC_CHECK_MEMBER(struct dirent.d_type,[], +AC_CHECK_MEMBER(struct dirent.d_type, +[GIT_CONF_APPEND_LINE(NO_D_TYPE_IN_DIRENT=)], [GIT_CONF_APPEND_LINE(NO_D_TYPE_IN_DIRENT=YesPlease)], [#include <dirent.h>]) # # Define NO_SOCKADDR_STORAGE if your platform does not have struct # sockaddr_storage. -AC_CHECK_TYPE(struct sockaddr_storage,[], +AC_CHECK_TYPE(struct sockaddr_storage, +[GIT_CONF_APPEND_LINE(NO_SOCKADDR_STORAGE=)], [GIT_CONF_APPEND_LINE(NO_SOCKADDR_STORAGE=YesPlease)], [#include <netinet/in.h>]) # # Define NO_IPV6 if you lack IPv6 support and getaddrinfo(). -AC_CHECK_TYPE(struct addrinfo,[], +AC_CHECK_TYPE(struct addrinfo, +[GIT_CONF_APPEND_LINE(NO_IPV6=)], [GIT_CONF_APPEND_LINE(NO_IPV6=YesPlease)], [#include <sys/types.h> #include <sys/socket.h> @@ -230,6 +239,8 @@ AC_RUN_IFELSE( ]) if test $ac_cv_c_c99_format = no; then GIT_CONF_APPEND_LINE(NO_C99_FORMAT=YesPlease) +else + GIT_CONF_APPEND_LINE(NO_C99_FORMAT=) fi @@ -238,25 +249,31 @@ ## (in default C library and libraries c AC_MSG_NOTICE([CHECKS for library functions]) # # Define NO_STRCASESTR if you don't have strcasestr. -AC_CHECK_FUNC(strcasestr,[], +AC_CHECK_FUNC(strcasestr, +[GIT_CONF_APPEND_LINE(NO_STRCASESTR=)], [GIT_CONF_APPEND_LINE(NO_STRCASESTR=YesPlease)]) # # Define NO_STRLCPY if you don't have strlcpy. -AC_CHECK_FUNC(strlcpy,[], +AC_CHECK_FUNC(strlcpy, +[GIT_CONF_APPEND_LINE(NO_STRLCPY=)], [GIT_CONF_APPEND_LINE(NO_STRLCPY=YesPlease)]) # # Define NO_SETENV if you don't have setenv in the C library. -AC_CHECK_FUNC(setenv,[], +AC_CHECK_FUNC(setenv, +[GIT_CONF_APPEND_LINE(NO_SETENV=)], [GIT_CONF_APPEND_LINE(NO_SETENV=YesPlease)]) # # Define NO_IPV6 if you lack IPv6 support and getaddrinfo(). -AC_CHECK_FUNC(getaddrinfo,[], +AC_CHECK_FUNC(getaddrinfo, +[GIT_CONF_APPEND_LINE(NO_IPV6=)], [GIT_CONF_APPEND_LINE(NO_IPV6=YesPlease)]) # # Define NO_MMAP if you want to avoid mmap. AC_FUNC_MMAP if test $ac_cv_func_mmap_fixed_mapped != yes; then GIT_CONF_APPEND_LINE(NO_MMAP=YesPlease) +else + GIT_CONF_APPEND_LINE(NO_MMAP=) fi # # Define NO_ICONV if your libc does not properly support iconv. -- 1.4.1.1 - : send the line "unsubscribe git" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html