[PATCH v3] OvmfPkg/build.sh: Make GCC5 the default toolchain, catch GCC43 and earlier

[Konrad Rzeszutek Wilk <konrad@kernel.org>]

v2:
 * Changes suggested by Laszlo:
   - change the catch-all (*) to GCC5, from GCC44
   - remove the (5.*.*) pattern from GCC49
   - generate error for GCC < 4.4

In v3, also generate error for really GCC < 4.4, like GCC 1.

Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Bugzilla: https://bugzilla.tianocore.org/show_bug.cgi?id=62
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org>
---
v1: Initial
v2: Redo it per Laszlo suggestions
v3: Fix up commit message per Jordan
    Also generate error for prehistoric versions of GCC, like 1.
---
 OvmfPkg/build.sh | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/OvmfPkg/build.sh b/OvmfPkg/build.sh
index eb5eb73..95fe8fb 100755
--- a/OvmfPkg/build.sh
+++ b/OvmfPkg/build.sh
@@ -83,6 +83,13 @@ case `uname` in
   Linux*)
     gcc_version=$(gcc -v 2>&1 | tail -1 | awk '{print $3}')
     case $gcc_version in
+      [1-3].*|4.[0-3].*)
+        echo OvmfPkg requires GCC4.4 or later
+        exit 1
+        ;;
+      4.4.*)
+        TARGET_TOOLS=GCC44
+        ;;
       4.5.*)
         TARGET_TOOLS=GCC45
         ;;
@@ -95,11 +102,11 @@ case `uname` in
       4.8.*)
         TARGET_TOOLS=GCC48
         ;;
-      4.9.*|4.1[0-9].*|5.*.*)
+      4.9.*)
         TARGET_TOOLS=GCC49
         ;;
       *)
-        TARGET_TOOLS=GCC44
+        TARGET_TOOLS=GCC5
         ;;
     esac
 esac
-- 
2.9.3