$NetBSD: patch-configure,v 1.6 2021/05/22 11:36:01 bouyer Exp $

Use gnu99 instead of c99 to avoid "alloca() undefined" problems.
Fix linking on Darwin; don't use -stack_size.
Changes for consistency across pkgsrc platforms.
Simplify _sysconfigdata to include only platform name.
detect netcan/can.h on NetBSD

--- configure.orig	2021-05-03 16:54:42.000000000 +0200
+++ configure	2021-05-22 11:50:33.365792903 +0200
@@ -6964,7 +6964,7 @@
 # tweak BASECFLAGS based on compiler and platform
 case $GCC in
 yes)
-    CFLAGS_NODIST="$CFLAGS_NODIST -std=c99"
+    CFLAGS_NODIST="$CFLAGS_NODIST -std=gnu99"
 
     { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -Wextra" >&5
 $as_echo_n "checking for -Wextra... " >&6; }
@@ -8344,7 +8344,7 @@
 
 
 # On Linux, can.h, can/bcm.h, can/j1939.h, can/raw.h require sys/socket.h
-for ac_header in linux/can.h linux/can/bcm.h linux/can/j1939.h linux/can/raw.h
+for ac_header in linux/can.h linux/can/bcm.h linux/can/j1939.h linux/can/raw.h netcan/can.h
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "
@@ -9655,7 +9655,6 @@
 		# to ensure that tests don't crash
 		# Note: This matches the value of THREAD_STACK_SIZE in
 		# thread_pthread.h
-		LINKFORSHARED="-Wl,-stack_size,1000000 $LINKFORSHARED"
 
 		if test "$enable_framework"
 		then
@@ -14500,10 +14499,10 @@
 if ac_fn_c_try_compile "$LINENO"; then :
 
 
-if grep noonsees conftest.$ac_objext >/dev/null ; then
+if strings -a conftest.$ac_objext | grep noonsees >/dev/null ; then
   ax_cv_c_float_words_bigendian=yes
 fi
-if grep seesnoon conftest.$ac_objext >/dev/null ; then
+if strings -a conftest.$ac_objext | grep seesnoon >/dev/null ; then
   if test "$ax_cv_c_float_words_bigendian" = unknown; then
     ax_cv_c_float_words_bigendian=no
   else
@@ -15388,7 +15387,7 @@
 fi
 
 
-EXT_SUFFIX=.${SOABI}${SHLIB_SUFFIX}
+EXT_SUFFIX=${SHLIB_SUFFIX}
 
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking LDVERSION" >&5
 $as_echo_n "checking LDVERSION... " >&6; }
@@ -15441,11 +15440,7 @@
 
 
 
-if test x$PLATFORM_TRIPLET = x; then
-  LIBPL='$(prefix)'"/${PLATLIBDIR}/python${VERSION}/config-${LDVERSION}"
-else
-  LIBPL='$(prefix)'"/${PLATLIBDIR}/python${VERSION}/config-${LDVERSION}-${PLATFORM_TRIPLET}"
-fi
+LIBPL='$(prefix)'"/${PLATLIBDIR}/python${VERSION}/config-${LDVERSION}"
 
 
 # Check whether right shifting a negative integer extends the sign bit