diff --git a/mingw-w64-openshadinglanguage/PKGBUILD b/mingw-w64-openshadinglanguage/PKGBUILD
index 23a6178428..50ce9fe350 100644
--- a/mingw-w64-openshadinglanguage/PKGBUILD
+++ b/mingw-w64-openshadinglanguage/PKGBUILD
@@ -5,8 +5,8 @@ pkgbase=mingw-w64-${_realname}
 pkgname="${MINGW_PACKAGE_PREFIX}-${_realname}"
 conflicts=("${MINGW_PACKAGE_PREFIX}-${_realname}-git")
 replaces=("${MINGW_PACKAGE_PREFIX}-${_realname}-git")
-pkgver=1.12.6.2
-pkgrel=2
+pkgver=1.12.7.0
+pkgrel=1
 pkgdesc="Advanced shading language for production GI renderers (mingw-w64)"
 arch=('any')
 mingw_arch=('mingw32' 'mingw64' 'ucrt64' 'clang64' 'clang32')
@@ -36,7 +36,7 @@ source=(${_realname}-${pkgver}.tar.gz::https://github.com/imageworks/OpenShading
         0013-disable-assert-partio.patch
         0014-fix-testshade-library-name.patch
         0015-llvm-linking.patch)
-sha256sums=('0115a0a09ac9ef0ade88f2434e1472323b335c3f0ddcca0ffd062f9cc822e629'
+sha256sums=('410d11124f1ff943db8a04e8228383fe180462d17d629cde7349859828236334'
             '36d7d16bcf9dedebd254c24fa2f4f70ef5bdf4cea8beee380931cfe5b8c45d7d'
             '9a0b5597c6047917b9541192e0f71b28dcfd17ea3a5948892f68d38b5e1b4946'
             '8b42553133e487077363a96520131f84453a81afdd9d198ef6827e0395ff1208'
@@ -79,8 +79,8 @@ build() {
 
   export OPENIMAGEIOHOME=${MINGW_PREFIX}
   export LLVM_DIRECTORY=${MINGW_PREFIX}
-  CFLAGS+=" -Wno-attributes -D_USE_MATH_DEFINES"
-  CXXFLAGS+=" -Wno-attributes -DTINYFORMAT_ALLOW_WCHAR_STRINGS -D_USE_MATH_DEFINES"
+  CFLAGS+=" -Wno-attributes"
+  CXXFLAGS+=" -Wno-attributes -DTINYFORMAT_ALLOW_WCHAR_STRINGS"
 
   MSYS2_ARG_CONV_EXCL="-DCMAKE_INSTALL_PREFIX=" \
   ${MINGW_PREFIX}/bin/cmake.exe \
@@ -96,13 +96,13 @@ build() {
 
   # $PWD/src/liboslcomp PATH addition needed for running oslc.exe during the build (for liboslcomp.dll)
   # ${MINGW_PREFIX}/bin PATH addition needed for finding libboost_system-mt.dll when running oslc.exe.
-  PATH=${srcdir}/build-${MSYSTEM}/src/liboslcomp:"${PATH}" cmake --build .
+  PATH=${srcdir}/build-${MSYSTEM}/src/liboslcomp:"${PATH}" ${MINGW_PREFIX}/bin/cmake --build .
 }
 
 package() {
   cd ${srcdir}//build-${MSYSTEM}
 
-  DESTDIR=${pkgdir} cmake --install .
+  DESTDIR=${pkgdir} ${MINGW_PREFIX}/bin/cmake --install .
 
   mkdir -p "${pkgdir}${MINGW_PREFIX}"/share/licenses/${_realname}
   install -Dm644 "${srcdir}/OpenShadingLanguage-${pkgver}/LICENSE.md" "${pkgdir}${MINGW_PREFIX}/share/licenses/${_realname}/LICENSE.md"