I have been trying to compile neon (checked out from the trunk) with
MinGW, but ./configure has been failing with the following message:
checking for library containing socket... not found
configure: error: could not find library containing socket
After digging into it further, I found that the configure script was
trying to compile a file like the following:
int
main ()
{
socket();
return 0;
}
There were two problems. First, it needed winsock2.h (such as in
ne_socket.c). Second, the socket function accepts three parameters. The
attached diff causes the following file to be generated and compiled
instead:
#ifdef WIN32
#include <winsock2.h>
#endif
int
main ()
{
socket(0,0,0);
return 0;
}
I have only tested this in Windows and have not had a chance to test it
on other platforms. Also, perhaps there is a better way to achieve the
same result?
Thanks.
-Matthias Miller
Index: macros/neon.m4
===================================================================
--- macros/neon.m4 (revision 1064)
+++ macros/neon.m4 (working copy)
@@ -339,7 +339,7 @@
])
dnl AC_SEARCH_LIBS done differently. Usage:
-dnl NE_SEARCH_LIBS(function, libnames, [extralibs], [actions-if-not-found],
+dnl NE_SEARCH_LIBS(name, function, prologue, libnames, [extralibs],
[actions-if-not-found],
dnl [actions-if-found])
dnl Tries to find 'function' by linking againt `-lLIB $NEON_LIBS' for each
dnl LIB in libnames. If link fails and 'extralibs' is given, will also
@@ -352,28 +352,28 @@
AC_CACHE_CHECK([for library containing $1], [ne_cv_libsfor_$1], [
AC_LINK_IFELSE(
- [AC_LANG_PROGRAM([], [[$1();]])],
+ [AC_LANG_PROGRAM([$3], [$2])],
[ne_cv_libsfor_$1="none needed"], [
ne_sl_save_LIBS=$LIBS
ne_cv_libsfor_$1="not found"
-for lib in $2; do
+for lib in $4; do
LIBS="$ne_sl_save_LIBS -l$lib $NEON_LIBS"
- AC_LINK_IFELSE([AC_LANG_PROGRAM([], [[$1();]])],
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([$3], [$2])],
[ne_cv_libsfor_$1="-l$lib"; break])
- m4_if($3, [], [], dnl If $3 is specified, then...
- [LIBS="$ne_sl_save_LIBS -l$lib $3 $NEON_LIBS"
- AC_LINK_IFELSE([AC_LANG_PROGRAM([], [[$1();]])],
- [ne_cv_libsfor_$1="-l$lib $3"; break])])
+ m4_if($5, [], [], dnl If $5 is specified, then...
+ [LIBS="$ne_sl_save_LIBS -l$lib $5 $NEON_LIBS"
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([$3], [$2])],
+ [ne_cv_libsfor_$1="-l$lib $5"; break])])
done
LIBS=$ne_sl_save_LIBS])])
if test "$ne_cv_libsfor_$1" = "not found"; then
- m4_if([$4], [], [AC_MSG_ERROR([could not find library containing $1])],
[$4])
+ m4_if([$6], [], [AC_MSG_ERROR([could not find library containing $1])],
[$6])
elif test "$ne_cv_libsfor_$1" = "none needed"; then
- m4_if([$5], [], [:], [$5])
+ m4_if([$7], [], [:], [$7])
else
NEON_LIBS="$ne_cv_libsfor_$1 $NEON_LIBS"
- $5
+ $7
fi])
dnl Check for presence and suitability of zlib library
@@ -603,11 +603,15 @@
# Unixware 7 can only link gethostbyname with -lnsl -lsocket
# Pick up -lsocket first, then the gethostbyname check will work.
-NE_SEARCH_LIBS(socket, socket inet ws2_32)
+NE_SEARCH_LIBS(socket, [socket(0,0,0)], [
+ #ifdef WIN32
+ #include <winsock2.h>
+ #endif
+], socket inet ws2_32)
# Enable getaddrinfo support if it, gai_strerror and inet_ntop are
# all available.
-NE_SEARCH_LIBS(getaddrinfo, nsl,,
+NE_SEARCH_LIBS(getaddrinfo, [], [getaddrinfo();], nsl,,
[ne_enable_gai=no],
[# HP-UX boxes commonly get into a state where getaddrinfo is present
# but borked: http://marc.theaimsgroup.com/?l=apr-dev&m=107730955207120&w=2
@@ -636,8 +640,8 @@
# Checks for non-getaddrinfo() based resolver interfaces.
# QNX has gethostbyname in -lsocket. BeOS only has it in -lbind.
# CygWin/Winsock2 has it in -lws2_32, allegedly.
- NE_SEARCH_LIBS(gethostbyname, socket nsl bind)
- NE_SEARCH_LIBS(hstrerror, resolv,,[:])
+ NE_SEARCH_LIBS(gethostbyname, [], [gethostbyname();], socket nsl bind)
+ NE_SEARCH_LIBS(hstrerror, [], [hstrerror();], resolv,,[:])
NE_CHECK_FUNCS(hstrerror)
# Older Unixes don't declare h_errno.
AC_CHECK_DECLS(h_errno,,,[#define _XOPEN_SOURCE_EXTENDED 1
@@ -854,8 +858,8 @@
CPPFLAGS="$CPPFLAGS ${NE_SSL_CFLAGS}"
NEON_LIBS="$NEON_LIBS ${NE_SSL_LIBS}"],
[# Either OpenSSL library may require -ldl if built with dynamic engine
support
- NE_SEARCH_LIBS(RSA_new, crypto, -ldl)
- NE_SEARCH_LIBS(SSL_library_init, ssl, -ldl)])
+ NE_SEARCH_LIBS(RSA_new, [], [RSA_new();], crypto, -ldl)
+ NE_SEARCH_LIBS(SSL_library_init, [], [SSL_library_init();], ssl, -ldl)])
AC_CHECK_HEADERS(openssl/ssl.h openssl/opensslv.h,,
[AC_MSG_ERROR([OpenSSL headers not found, cannot enable SSL support])])
@@ -1097,7 +1101,7 @@
# presume that dgettext() is available if bindtextdomain() is...
# checking for dgettext() itself is awkward because gcc has a
# builtin of that function, which confuses AC_CHECK_FUNCS et al.
- NE_SEARCH_LIBS(bindtextdomain, intl,,[enable_nls=no])
+ NE_SEARCH_LIBS(bindtextdomain, [], [bindtextdomain();],
intl,,[enable_nls=no])
NE_CHECK_FUNCS(bind_textdomain_codeset)
fi
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