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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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13
autoconf/m4/pa_option_debug.m4 Normal file
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@ -0,0 +1,13 @@
dnl --------------------------------------------------------------------------
dnl PA_OPTION_DEBUG(with_debug, without_debug)
dnl
dnl Set debug flags and optimization flags depending on if
dnl --enable-debug is set or not. Some flags are set regardless...
dnl --------------------------------------------------------------------------
AC_DEFUN([PA_OPTION_DEBUG],
[PA_ARG_DISABLED([gdb], [disable gdb debug extensions],
[PA_ADD_LANGFLAGS([-g3])], [PA_ADD_LANGFLAGS([-ggdb3 -g3])])
PA_ARG_ENABLED([debug], [optimize for debugging],
[PA_ADD_LANGFLAGS([-Og -O0])
$1],
[$2])])