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autoconf: modernize and modularize

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Use my modular m4 library used for other things as well; update
autoconf macros to 2.71 standard.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>
This commit is contained in:
H. Peter Anvin 2024-06-10 18:24:53 -07:00
parent 33051a296c
commit fefaa2cc5c
35 changed files with 680 additions and 461 deletions
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41
autoconf/m4/pa_cross_compile.m4 Normal file
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@ -0,0 +1,41 @@
dnl --------------------------------------------------------------------------
dnl PA_CROSS_COMPILE
dnl
dnl Get the canonical name for the build and host (runtime) systems;
dnl then figure out if this is cross-compilation. Specifically, this
dnl disables invoking WINE on non-Windows systems which are configured
dnl to run WINE automatically.
dnl
dnl Use PA_CROSS_COMPILE_TOOL if the target system (output of a code-
dnl generation tool) is applicable.
dnl
dnl This doesn't explicitly print any messages as that is automatically
dnl done elsewhere.
dnl --------------------------------------------------------------------------
AC_DEFUN_ONCE([PA_CROSS_COMPILE],
[
AC_BEFORE([$0], [AC_LANG_COMPILER])
AC_BEFORE([$0], [AC_LANG])
AC_BEFORE([$0], [AC_PROG_CC])
AC_BEFORE([$0], [AC_PROG_CPP])
AC_BEFORE([$0], [AC_PROG_CXX])
AC_BEFORE([$0], [AC_PROG_CXXCPP])
AC_BEFORE([$0], [AC_PROG_OBJC])
AC_BEFORE([$0], [AC_PROG_OBJCPP])
AC_BEFORE([$0], [AC_PROG_OBJCXX])
AC_BEFORE([$0], [AC_PROG_OBJCXXCPP])
AC_BEFORE([$0], [AC_PROG_F77])
AC_BEFORE([$0], [AC_PROG_FC])
AC_BEFORE([$0], [AC_PROG_GO])
# Disable WINE
WINELOADER=/dev/null
export WINELOADER
WINESERVER=/dev/null
export WINESERVER
WINEPREFIX=/dev/null
export WINEPREFIX
AC_CANONICAL_BUILD
AC_CANONICAL_HOST
])