Fix build issues on ARM with certain toolchains

Some gcc/binutils combinations do not like having a space between
"-Wa," and the following assembler option, so we simply remove those
spaces.

However, fixing the configure.in is not sufficient, because libnspr
absolutely requires the prehistoric autoconf 2.13 to re-generate the
configure script. So, since the patch to the configure script is not
horrible, we also patch this script directly.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

Index: b/mozilla/nsprpub/configure.in
===================================================================
--- a/mozilla/nsprpub/configure.in
+++ b/mozilla/nsprpub/configure.in
@@ -925,8 +925,8 @@
   case "$target_cpu" in
     arm*)
       if test "$GNU_CC"; then
-        CFLAGS="$CFLAGS -march=armv7-a -mthumb -Wa, -march=armv7-a -Wa, -mthumb"
-        CXXFLAGS="$CXXFLAGS -march=armv7-a -mthumb -Wa, -march=armv7-a -Wa, -mthumb"
+        CFLAGS="$CFLAGS -march=armv7-a -mthumb -Wa,-march=armv7-a -Wa,-mthumb"
+        CXXFLAGS="$CXXFLAGS -march=armv7-a -mthumb -Wa,-march=armv7-a -Wa,-mthumb"
         ASFLAGS="$ASFLAGS -march=armv7-a -mthumb"
       else
         AC_MSG_ERROR([--enable-thumb2 is not supported for non-GNU toolchains])
@@ -940,8 +940,8 @@
   case "$target_cpu" in
     arm*)
       if test "$GNU_CC"; then
-       CFLAGS="$CFLAGS -march=armv5te -mthumb-interwork -Wa, -march=armv5te -Wa, -mthumb-interwork"
-        CXXFLAGS="$CXXFLAGS -march=armv5te -mthumb-interwork -Wa, -march=armv5te -Wa, -mthumb-interwork"
+       CFLAGS="$CFLAGS -march=armv5te -mthumb-interwork -Wa,-march=armv5te -Wa,-mthumb-interwork"
+        CXXFLAGS="$CXXFLAGS -march=armv5te -mthumb-interwork -Wa,-march=armv5te -Wa,-mthumb-interwork"
         ASFLAGS="$ASFLAGS -march=armv5te -mthumb-interwork"
       fi
       ;;
Index: b/mozilla/nsprpub/configure
===================================================================
--- a/mozilla/nsprpub/configure
+++ b/mozilla/nsprpub/configure
@@ -3101,8 +3101,8 @@
   case "$target_cpu" in
     arm*)
       if test "$GNU_CC"; then
-        CFLAGS="$CFLAGS -march=armv7-a -mthumb -Wa, -march=armv7-a -Wa, -mthumb"
-        CXXFLAGS="$CXXFLAGS -march=armv7-a -mthumb -Wa, -march=armv7-a -Wa, -mthumb"
+        CFLAGS="$CFLAGS -march=armv7-a -mthumb -Wa,-march=armv7-a -Wa,-mthumb"
+        CXXFLAGS="$CXXFLAGS -march=armv7-a -mthumb -Wa,-march=armv7-a -Wa,-mthumb"
         ASFLAGS="$ASFLAGS -march=armv7-a -mthumb"
       else
         { echo "configure: error: --enable-thumb2 is not supported for non-GNU toolchains" 1>&2; exit 1; }
@@ -3116,8 +3116,8 @@
   case "$target_cpu" in
     arm*)
       if test "$GNU_CC"; then
-       CFLAGS="$CFLAGS -march=armv5te -mthumb-interwork -Wa, -march=armv5te -Wa, -mthumb-interwork"
-        CXXFLAGS="$CXXFLAGS -march=armv5te -mthumb-interwork -Wa, -march=armv5te -Wa, -mthumb-interwork"
+       CFLAGS="$CFLAGS -march=armv5te -mthumb-interwork -Wa,-march=armv5te -Wa,-mthumb-interwork"
+        CXXFLAGS="$CXXFLAGS -march=armv5te -mthumb-interwork -Wa,-march=armv5te -Wa,-mthumb-interwork"
         ASFLAGS="$ASFLAGS -march=armv5te -mthumb-interwork"
       fi
       ;;