[FFmpeg-devel] [PATCH] configure: Add toolchain-prefix option.

[Reimar Döffinger]

Useful to select e.g. between mingw32, 32-bit mingw64 and 64-bit mingw64
toolchains, which all are not cross-compilation toolchains.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger at gmx.de>
---
 configure | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/configure b/configure
index 9085200..5c1cbca 100755
--- a/configure
+++ b/configure
@@ -279,6 +279,10 @@ Toolchain options:
   --cpu=CPU                select the minimum required CPU (affects
                            instruction selection, may crash on older CPUs)
   --cross-prefix=PREFIX    use PREFIX for compilation tools [$cross_prefix]
+  --toolchain-prefix=PRE   use PRE for compilation tools [$toolchain_prefix]
+                           but do not assume cross-compilation and also replace
+                           host tools.
+                           If --cross-prefix is also given, use only for host tools.
   --progs-suffix=SUFFIX    program name suffix []
   --enable-cross-compile   assume a cross-compiler is used
   --sysroot=PATH           root of cross-build tree
@@ -1963,6 +1967,7 @@ CMDLINE_SET="
     target_samples
     tempprefix
     toolchain
+    toolchain_prefix
     valgrind
     yasmexe
 "
@@ -2977,6 +2982,8 @@ if enabled cross_compile; then
         die "Must specify target arch and OS when cross-compiling"
 fi
 
+test -n "$cross_prefix" || cross_prefix="$toolchain_prefix"
+
 ar_default="${cross_prefix}${ar_default}"
 cc_default="${cross_prefix}${cc_default}"
 cxx_default="${cross_prefix}${cxx_default}"
@@ -3076,6 +3083,7 @@ esac
 
 set_default arch cc cxx doxygen pkg_config ranlib strip sysinclude \
     target_exec target_os yasmexe
+host_cc_default=${toolchain_prefix}${host_cc_default}
 enabled cross_compile || host_cc_default=$cc
 set_default host_cc
 
-- 
2.2.1