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Compiler vendor detection for autotools

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Maria Matejka 2024-09-02 15:20:46 +02:00
parent edd9ec599c
commit f534543733
1 changed files with 19 additions and 0 deletions
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19
aclocal.m4 vendored
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@ -2,6 +2,25 @@ dnl ** Additional Autoconf tests for BIRD configure script
dnl ** (c) 1999 Martin Mares <mj@ucw.cz>
dnl ** (c) 2021 Maria Matejka <mq@jmq.cz>
# simplified adapted macro AX_COMPILER_VENDOR from autotools
AC_DEFUN([BIRD_COMPILER_VENDOR],
[
AC_CACHE_CHECK(
[which compiler vendor we are dealing with],
[bird_cv_compiler_vendor],
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([ int x = __clang__; ], [])
],
[bird_cv_compiler_vendor=clang],
AC_COMPILE_IFELSE([
AC_LANG_PROGRAM([ int x = __GNUC__; ], [])
],
[bird_cv_compiler_vendor=gnu],
[bird_cv_compiler_vendor=unknown]
))
)
])
AC_DEFUN([BIRD_CHECK_POINTER_ALIGNMENT],
[
AC_CACHE_CHECK(