1 files changed, 69 insertions, 36 deletions
diff --git a/build_and_test.sh b/build_and_test.sh
index 627e062..873bacf 100644
--- a/build_and_test.sh
+++ b/build_and_test.sh
@@ -11,50 +11,83 @@ FLAG_OBJ="-c -o "
 FLAG_EXE="-o "
 LINK_FLAGS=
 
+if    [ "$2" = "gcc" ]; then
+  COMPILE=gcc
+  COMPILEPP=g++
+elif  [ "$2" = "clang" ]; then
+  COMPILE=clang
+  COMPILEPP=clang++
+elif  [ "$2" = "msvc" ]; then
+  COMPILE=cl.exe
+  COMPILEPP=cl.exe
+  OBJ_POSTFIX=.obj
+  FLAG_OBJ="-c -Fo"
+  FLAG_EXE="-Fe"
+  LINK_FLAGS="Shlwapi.lib"
+elif  [ "$2" != "" ]; then
+  echo "Unknown C compiler"
+  exit 1
+fi
+
+if [ "$2" != "" ]; then
+  if command -v $COMPILE >/dev/null 2>&1; then
+    echo "C compiler found"
+  else
+    echo "C compiler not found"
+    exit 1
+  fi
+fi
+
 case $(uname | tr '[:upper:]' '[:lower:]') in
   *darwin*)
-    if    command -v clang >/dev/null 2>&1; then
-      echo "C compiler found - Clang"
-      COMPILE=clang
-      COMPILEPP=clang++
-    elif  command -v gcc >/dev/null 2>&1; then
-      echo "C compiler found - GCC"
-    else
-      echo "C compiler not found"
-      exit 1
+    if [ "$2" = "" ]; then
+      if    command -v clang >/dev/null 2>&1; then
+        echo "C compiler found - Clang"
+        COMPILE=clang
+        COMPILEPP=clang++
+      elif  command -v gcc >/dev/null 2>&1; then
+        echo "C compiler found - GCC"
+      else
+        echo "C compiler not found"
+        exit 1
+      fi
     fi
     ;;
   *msys*|*cygwin*|*mingw*|*nt*|*win*)
-    if    command -v cl.exe >/dev/null 2>&1; then
-      echo "C compiler found - MSVC"
-      COMPILE=cl.exe
-      COMPILEPP=cl.exe
-      OBJ_POSTFIX=.obj
-      EXE_POSTFIX=.exe
-      FLAG_OBJ="-c -Fo"
-      FLAG_EXE="-Fe"
-      LINK_FLAGS="Shlwapi.lib"
-    elif  command -v gcc >/dev/null 2>&1; then
-      echo "C compiler found - GCC"
-    elif  command -v clang >/dev/null 2>&1; then
-      echo "C compiler found - Clang"
-      COMPILE=clang
-      COMPILEPP=clang++
-    else
-      echo "C compiler not found"
-      exit 1
+    EXE_POSTFIX=.exe
+    if [ "$2" = "" ]; then
+      if    command -v cl.exe >/dev/null 2>&1; then
+        echo "C compiler found - MSVC"
+        COMPILE=cl.exe
+        COMPILEPP=cl.exe
+        OBJ_POSTFIX=.obj
+        FLAG_OBJ="-c -Fo"
+        FLAG_EXE="-Fe"
+        LINK_FLAGS="Shlwapi.lib"
+      elif  command -v gcc >/dev/null 2>&1; then
+        echo "C compiler found - GCC"
+      elif  command -v clang >/dev/null 2>&1; then
+        echo "C compiler found - Clang"
+        COMPILE=clang
+        COMPILEPP=clang++
+      else
+        echo "C compiler not found"
+        exit 1
+      fi
     fi
     ;;
   *)
-    if    command -v gcc >/dev/null 2>&1; then
-      echo "C compiler found - GCC"
-    elif  command -v clang >/dev/null 2>&1; then
-      echo "C compiler found - Clang"
-      COMPILE=clang
-      COMPILEPP=clang++
-    else
-      echo "C compiler not found"
-      exit 1
+    if [ "$2" = "" ]; then
+      if    command -v gcc >/dev/null 2>&1; then
+        echo "C compiler found - GCC"
+      elif  command -v clang >/dev/null 2>&1; then
+        echo "C compiler found - Clang"
+        COMPILE=clang
+        COMPILEPP=clang++
+      else
+        echo "C compiler not found"
+        exit 1
+      fi
     fi
     ;;
 esac