Remove hardcoded CC variable

Those are now set by makepkg

mingw-w64-argon2/PKGBUILD

@@ -49,12 +49,12 @@ build() {
   cp -rf ${srcdir}/phc-winner-argon2-${pkgver} "${srcdir}/build-${MINGW_CHOST}"
   cd "${srcdir}/build-${MINGW_CHOST}"
 
-  make CC=${MINGW_PREFIX}/bin/gcc AR=${MINGW_PREFIX}/bin/ar OPTTARGET=${_march}
+  make AR=${MINGW_PREFIX}/bin/ar OPTTARGET=${_march}
 }
 
 package() {
   cd "${srcdir}/build-${MINGW_CHOST}"
-  make install DESTDIR="${pkgdir}" CC=${MINGW_PREFIX}/bin/gcc AR=${MINGW_PREFIX}/bin/ar PREFIX="${MINGW_PREFIX}" OPTTARGET=${_march}
+  make install DESTDIR="${pkgdir}" AR=${MINGW_PREFIX}/bin/ar PREFIX="${MINGW_PREFIX}" OPTTARGET=${_march}
 
   install -Dm644 LICENSE "${pkgdir}${MINGW_PREFIX}/share/licenses/${_realname}/LICENSE"
   install -Dm644 ${srcdir}/libargon2.pc "${pkgdir}${MINGW_PREFIX}/lib/pkgconfig/libargon2.pc"

mingw-w64-dcadec/PKGBUILD

@@ -49,7 +49,6 @@ build() {
   CONFIG_NDEBUG=1 \
   CONFIG_WINDOWS=1 \
   CONFIG_SHARED=1 \
-  CC=gcc \
   make all -f "${srcdir}/${_realname}-${pkgver}/Makefile"
 
   # Build static lib.
@@ -61,7 +60,6 @@ build() {
   PREFIX=$MINGW_PREFIX \
   CONFIG_NDEBUG=1 \
   CONFIG_WINDOWS=1 \
-  CC=gcc \
   make lib -f "${srcdir}/${_realname}-${pkgver}/Makefile"
 }
 

mingw-w64-http-parser/PKGBUILD

@@ -29,7 +29,6 @@ build() {
   mkdir -p "${srcdir}"/build-${CARCH} && cd "${srcdir}"/build-${CARCH}
   cp -R ${srcdir}/${_realname}-${pkgver}/. "${srcdir}"/build-${CARCH}
 
-  CC=${MINGW_PREFIX}/bin/gcc \
   AR=${MINGW_PREFIX}/bin/ar \
   SONAME=libhttp_parser-2.dll \
   LIBNAME=libhttp_parser-2.dll \

mingw-w64-libxslt/PKGBUILD

@@ -83,7 +83,7 @@ build() {
     --with-libxml-prefix=${MINGW_PREFIX} \
     --without-python
 
-  CC=${MINGW_PREFIX}/bin/gcc make
+  make
 }
 
 package() {

mingw-w64-lua51/PKGBUILD

@@ -55,7 +55,7 @@ build() {
     AR="ar rcu" \
     RANLIB="ranlib" \
     STRIP="strip" \
-    CC="${MINGW_CHOST}-gcc" \
+    CC="${CC}" \
     mingw
 
   # Check we do not encounter:

mingw-w64-lv2/PKGBUILD

@@ -34,7 +34,7 @@ build() {
   DEST_OS=win32 \
   TARGET=${MINGW_CHOST} \
   PKG_CONFIG=${MINGW_PREFIX}/bin/pkg-config \
-  CC=gcc PERL=/usr/bin/perl \
+  PERL=/usr/bin/perl \
   AR=${MINGW_PREFIX}/bin/ar \
   WINDRES=${MINGW_PREFIX}/bin/windres \
   RST2MAN=${MINGW_PREFIX}/bin/rst2man3 \

mingw-w64-odt2txt/PKGBUILD

@@ -29,7 +29,7 @@ build() {
   [[ "$CARCH" == "i686" ]] && arch_make=32
 
   cd "${srcdir}/${_realname}-${pkgver}"
-  make ARCH=${arch_make} CC=${MINGW_PREFIX}/bin/gcc
+  make ARCH=${arch_make}
 }
 
 package() {

mingw-w64-pngquant/PKGBUILD

@@ -34,7 +34,6 @@ build() {
     SSE="--enable-sse"
   fi
   ./configure --prefix=${MINGW_PREFIX} \
-    CC="${MINGW_PREFIX}/bin/gcc" \
     --with-libimagequant=${MINGW_PREFIX}/lib/ \
     ${SSE}
   make --jobs=1

mingw-w64-rtmpdump-git/PKGBUILD

@@ -73,11 +73,11 @@ prepare() {
 build() {
   cp -rf "${srcdir}/$_realname" "${srcdir}/build-${MINGW_CHOST}"
   cd "${srcdir}/build-${MINGW_CHOST}"
-  make CC=gcc LD=ld AR=ar SYS=mingw
+  make CC=${CC} LD=ld AR=ar SYS=mingw
 }
 
 package() {
   cd "${srcdir}/build-${MINGW_CHOST}"
   mkdir -p ${pkgdir}${MINGW_PREFIX}/lib
-  make CC=gcc LD=ld AR=ar SYS=mingw prefix=${MINGW_PREFIX} mandir=${MINGW_PREFIX}/share/man DESTDIR="${pkgdir}" install
+  make CC=${CC} LD=ld AR=ar SYS=mingw prefix=${MINGW_PREFIX} mandir=${MINGW_PREFIX}/share/man DESTDIR="${pkgdir}" install
 }

mingw-w64-tolua/PKGBUILD

@@ -25,7 +25,7 @@ build() {
     AR="ar rcu" \
     RANLIB="ranlib" \
     STRIP="strip" \
-    CC="${MINGW_CHOST}-gcc"
+    CC="${CC}"
 }
 
 package(){