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Add BUILD2_AUTOCONF_MINGW_PREREQ(maj, min)

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This commit is contained in:
Francois Kritzinger 2022-09-14 11:28:57 +02:00
parent 1f742a815a
commit ef18e9680b
1 changed files with 29 additions and 0 deletions
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29
libbuild2-autoconf/libbuild2/autoconf/checks/BUILD2_AUTOCONF_LIBC_VERSION.h
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@ -14,6 +14,7 @@
* BUILD2_AUTOCONF_OPENBSD_PREREQ(yyyymm)
* BUILD2_AUTOCONF_NETBSD_PREREQ(maj, min)
* BUILD2_AUTOCONF_MACOS_PREREQ(maj, min)
* BUILD2_AUTOCONF_MINGW_PREREQ(maj, min)
*
* Note that all of the above macros are always defined and evaluate to false
* on platforms to which they do not apply. Which means that instead of:
@ -31,6 +32,7 @@
* #if defined(__FreeBSD__)
* #if defined(__OpenBSD__)
* #if defined(__NetBSD__)
* #if defined(__MINGW32__)
*
* Except for MacOS specifically, which we detect using our own macro (for
* the sake of simplicity):
@ -89,6 +91,17 @@
* formatted as `MMmmpp` where `mm` is the
* (now potentially double-digit) minor
* version and `pp` is the patch version.
*
* __MINGW32__: Defined if on original Mingw and on Mingw-w64, both 32 and
* 64-bit. This is a predefined macro so no header needs to be
* included. Note that we don't really care about original Mingw.
*
* __MINGW64__: Defined if on Mingw-w64, 64-bit only. This is a predefined
* macro so no header needs to be included.
*
* __MINGW64_MAJOR_VERSION:
* __MINGW64_MINOR_VERSION: The Mingw-w64 major/minor version numbers. Note
* that these are defined for both 32 and 64-bit.
*/
#if defined(__linux__)
# include <features.h> /* __GLIBC__, __GLIBC_MINOR__, __GLIBC_PREREQ() */
@ -101,6 +114,8 @@
# include <sys/param.h> /* OpenBSD, __NetBSD_Version__ */
#elif defined(__APPLE__)
# include <Availability.h> /* __MAC_OS_X_VERSION_MIN_REQUIRED */
#elif defined(__MINGW32__)
# include <_mingw.h> /* __MINGW64_{MAJOR,MINOR}_VERSION */
#endif
/* BUILD2_AUTOCONF_GLIBC_PREREQ(maj, min)
@ -192,4 +207,18 @@
# define BUILD2_AUTOCONF_MACOS_PREREQ(maj, min) 0
#endif
/* BUILD2_AUTOCONF_MINGW_PREREQ(maj, min)
*
* Return 1 if the Mingw-w64 version is >= the given version number, or 0
* otherwise.
*/
#if defined(__MINGW64_MAJOR_VERSION) && defined(__MINGW64_MINOR_VERSION)
# define BUILD2_AUTOCONF_MINGW_PREREQ(maj, min) \
(__MINGW64_MAJOR_VERSION > (maj) || \
(__MINGW64_MAJOR_VERSION == (maj) && \
__MINGW64_MINOR_VERSION >= (min)))
#else
# define BUILD2_AUTOCONF_MINGW_PREREQ(maj, min) 0
#endif
#endif /* BUILD2_AUTOCONF_LIBC_VERSION */