abseil-cpp: build static with clang

shared fails atm

mingw-w64-abseil-cpp/PKGBUILD

@@ -4,7 +4,7 @@ _realname=abseil-cpp
 pkgbase=mingw-w64-${_realname}
 pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
 pkgver=20211102.0
-pkgrel=2
+pkgrel=3
 pkgdesc="A collection of open source C++ libraries taken from the most fundamental pieces of Google’s internal codebase, designed to extend the standard C ++ library. (mingw-w64)"
 arch=('any')
 mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64' 'clang32')
@@ -12,7 +12,7 @@ url="https://abseil.io"
 license=('spdx:Apache-2.0')
 makedepends=("${MINGW_PACKAGE_PREFIX}-cmake"
              "${MINGW_PACKAGE_PREFIX}-ninja"
-	     "${MINGW_PACKAGE_PREFIX}-cc")
+             "${MINGW_PACKAGE_PREFIX}-cc")
 source=("https://github.com/abseil/abseil-cpp/archive/$pkgver/$_realname-$pkgver.tar.gz"
         "0001-abseil-Fix-compiler-warnings.patch"
         "0002-abseil-Remove-librt-library.patch"
@@ -34,7 +34,8 @@ build() {
   [[ -d "${srcdir}/build-${MSYSTEM}" ]] && rm -rf "${srcdir}/build-${MSYSTEM}"
   mkdir -p "${srcdir}/build-${MSYSTEM}" && cd "${srcdir}/build-${MSYSTEM}"
 
-  # clang fails, see https://github.com/msys2/MINGW-packages/pull/8653#issuecomment-999640833
+  # shared build with clang fails, see
+  # https://github.com/msys2/MINGW-packages/pull/8653#issuecomment-999640833
 
   MSYS2_ARG_CONV_EXCL="-DCMAKE_INSTALL_PREFIX=" \
   ${MINGW_PREFIX}/bin/cmake \
@@ -42,7 +43,7 @@ build() {
     -DCMAKE_INSTALL_PREFIX=${MINGW_PREFIX} \
     -DCMAKE_BUILD_TYPE=Release \
     -DCMAKE_CXX_STANDARD=17 \
-    -DBUILD_SHARED_LIBS=ON \
+    -DBUILD_SHARED_LIBS="$( [[ ${MINGW_PACKAGE_PREFIX} == *-clang-* ]] && echo "OFF" || echo "ON" )" \
     ../${_realname}-${pkgver}
 
   cmake --build .