Author :
Ozkan Sezer
Date :
2021-06-28 02:00:24
Hash :2143534a Message :configure.ac: manually check immintrin.h with AC_COMPILE_IFELSE().
AC_CHECK_HEADER() emits warnings when configuring for non-x86, because
the preprocessor check is OK but the compile check is not:
configure: WARNING: immintrin.h: present but cannot be compiled
configure: WARNING: immintrin.h: check for missing prerequisite headers?
configure: WARNING: immintrin.h: see the Autoconf documentation
configure: WARNING: immintrin.h: section "Present But Cannot Be Compiled"
configure: WARNING: immintrin.h: proceeding with the compiler's result
Ozkan Sezer