[Libguestfs] [PATCH] ruby: fix order of CFLAGS

[Pino Toscano]

Shuffle the order of the various CFLAGS used when building the Ruby
extension: first the flags from manywarnings (gnulib), then libguestfs
own CFLAGS, and then -DGUESTFS_PRIVATE=1 (so it is not overridden).

This matches also what happens in automake parts, and makes it possible
to override any flags from manywarnings also in the Ruby extension.
---
 ruby/ext/guestfs/extconf.rb.in | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/ruby/ext/guestfs/extconf.rb.in b/ruby/ext/guestfs/extconf.rb.in
index c4551fa6c..6b806101e 100644
--- a/ruby/ext/guestfs/extconf.rb.in
+++ b/ruby/ext/guestfs/extconf.rb.in
@@ -33,8 +33,9 @@ have_func("rb_define_alloc_func")
 have_type("rb_alloc_func_t")
 
 $CFLAGS =
-  "#{$CFLAGS} @CFLAGS@ -DGUESTFS_PRIVATE=1 " <<
-  "@WARN_CFLAGS@ @WERROR_CFLAGS@"
+  "#{$CFLAGS} " <<
+  "@WARN_CFLAGS@ @WERROR_CFLAGS@ " <<
+  "@CFLAGS@ -DGUESTFS_PRIVATE=1"
 
 create_header
 create_makefile(extension_name, "@abs_srcdir@")
-- 
2.13.4