AX_CFLAGS_WARN_ALL
AM_PROG_LIBTOOL
mdw_LIBTOOL_VERSION_INFO
+case $host_os in
+ cygwin* | mingw* | pw32* | os2* | darwin* | cegcc*)
+ TEST_LDFLAGS=-no-fast-install ;;
+ *)
+ TEST_LDFLAGS=-no-install ;;
+esac
+AC_SUBST([TEST_LDFLAGS])
AM_PROG_AS
$1
_ACEOF])
-AC_CACHE_CHECK(
- [whether the assembler is likely to work], [mdw_cv_gnuish_as],
- [AC_LANG_PUSH([CPPAS])
- AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
- .text
- .L\$_test = 23
-.macro mymac
- .L\$_test = .L\$_test + 1
-.endm
- .globl foo
- .extern bar
- mymac]])],
- [mdw_cv_gnuish_as=yes], [mdw_cv_gnuish_as=no])
- AC_LANG_POP([CPPAS])])
-AM_CONDITIONAL([GNUISH_AS], [test $mdw_cv_gnuish_as = yes])
-
dnl--------------------------------------------------------------------------
dnl Host-specific configuration.
-AC_MSG_CHECKING([CPU family and ABI])
-
dnl The table of CPU families and ABIs which we might support. Support is
dnl not uniform: each dispatched function might or might not have an
dnl implementation for any particular CPU/ABI combination.
$1([i[[3-6]]86,*], [x86], [sysv])
$1([x86_64,cygwin], [amd64], [win])
$1([x86_64,*], [amd64], [sysv])
- $1([arm,*-gnueabi | arm,*-gnueabihf | dnl
- armv*,*-gnueabi | armv*,*-gnueabihf], [armel], [gnueabi])])
+ $1([arm,* | armv*,*], [armel], [std])
+ $1([aarch64,*], [arm64], [std])])
dnl A utility to clear the `seen' flags, used so as to process each CPU or
dnl ABI once.
[m4_undefine([catacomb_seen_abi/$3])])])
dnl Identify the current host.
-if test $mdw_cv_gnuish_as = no; then
- CPUFAM=nil ABI=nil
-else
- case $host_cpu,$host_os in
- m4_define([catacomb_CPU_CASE],
- [$1) CPUFAM=$2 ABI=$3 ;;
+case $host_cpu,$host_os in
+ m4_define([catacomb_CPU_CASE],
+ [$1) CPUFAM=$2 ABI=$3 ;;
])
- catacomb_CPU_FAMILIES([catacomb_CPU_CASE])
- *) CPUFAM=nil ABI=nil ;;
- esac
-fi
+ catacomb_CPU_FAMILIES([catacomb_CPU_CASE])
+ *) CPUFAM=nil ABI=nil ;;
+esac
+
+dnl Now check the assembler. We have target-specific requirements here, so
+dnl we couldn't do this any earlier.
+AC_CACHE_CHECK(
+ [whether the assembler is likely to work], [mdw_cv_gnuish_as],
+ [AC_LANG_PUSH([CPPAS])
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+ .text
+ .L\$_test = 23
+.macro mymac
+ .L\$_test = .L\$_test + 1
+.endm
+ .globl foo
+ .extern bar
+ mymac]])],
+ [mdw_cv_gnuish_as=yes], [mdw_cv_gnuish_as=no])
+ case $CPUFAM in
+ x86 | amd64)
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
+ .text
+ .arch pentium4
+ .intel_syntax noprefix
+ .globl foo
+foo:
+ adcd var, 0
+ ret
+ .data
+var: .long 1
+ ]])],
+ [:], [mdw_cv_gnuish_as=no])
+ ;;
+ esac
+ AC_LANG_POP([CPPAS])])
+AM_CONDITIONAL([GNUISH_AS], [test $mdw_cv_gnuish_as = yes])
+if test $mdw_cv_gnuish_as = no; then CPUFAM=nil ABI=nil; fi
dnl A hairy macro used to set the `CPUFAM_...' and `ABI_...' variables. We
dnl basically need to do the same thing for the family and ABI, so it's worth
;;m4_define([catacomb_seen_$3/$$2], [t])])])
catacomb_CPU_FAMILIES([_def])
nil) ;;
- *) AC_MSG_ERROR([BUG: unexpected $1 \`$1']) ;;
+ *) AC_MSG_ERROR([BUG: unexpected $1 \`$$1']) ;;
esac])
+dnl Now that's out the way, we can explain what we're doing.
+AC_MSG_CHECKING([CPU family and ABI])
+
dnl Figure out the target CPU family and ABI.
catacomb_CPU_FAMILIES([catacomb_CLEAR_FLAGS])
catacomb_DEFINE_CPU_OR_ABI([CPUFAM], [2], [cpu],
*) AC_MSG_RESULT([$CPUFAM/$ABI]) ;;
esac
+dnl Consider enabling support for assembler-level debugging toys.
+AC_ARG_ENABLE([asm-debug],
+ AS_HELP_STRING([--enable-asm-debug],
+ [enable assembler debugging features]),
+ [mdw_asm_debug=$enableval], [mdw_asm_debug=no])
+case $CPUFAM in nil) mdw_asm_debug=no ;; esac
+case $mdw_asm_debug in
+ no) ;;
+ *) AC_DEFINE([ENABLE_ASM_DEBUG], [1],
+ [Define to enable assembler-level debugging.]) ;;
+esac
+AM_CONDITIONAL([ASM_DEBUG], [test x$mdw_asm_debug != xno])
+
+dnl Check for leading underscores on C symbols.
+LT_SYS_SYMBOL_USCORE
+case $sys_symbol_underscore in
+ yes) AC_DEFINE([SYM_USCORE], [1],
+ [Define if C symbols are prefixed with an underscore.]) ;;
+esac
+
dnl--------------------------------------------------------------------------
dnl CPU-specific assembler features.
])
dnl The maths library.
-mdw_ORIG_LIBS=$LIBS LIBS=
+mdw_ORIG_LIBS=$LIBS LIBS=$CATACOMB_LIBS
AC_SEARCH_LIBS([log], [m])
AC_SEARCH_LIBS([sqrt], [m])
-AC_SUBST([MATHLIBS], [$LIBS])
-LIBS=$mdw_ORIG_LIBS
+CATACOMB_LIBS=$LIBS LIBS=$mdw_ORIG_LIBS
+
+dnl Logging is weird under Termux. Unfortunately, it involves macros, so we
+dnl have to do this the hard way.
+AC_CACHE_CHECK(
+ [library needed for syslog], [mdw_cv_syslog_lib],
+ [mdw_ORIG_LIBS=$LIBS LIBS=
+ for i in 0 1; do
+ AC_TRY_LINK([#include <syslog.h>],
+ [openlog("test", LOG_PID, LOG_DAEMON);
+ syslog(LOG_ERR, "this is a test");],
+ [ok=t], [ok=nil])
+ case $i,$ok in
+ *,t) mdw_cv_syslog_lib=${LIBS:-none}; break ;;
+ 0,nil) LIBS="-llog" ;;
+ 1,nil) AC_MSG_ERROR("failed to link test program") ;;
+ esac
+ done
+ LIBS=$mdw_ORIG_LIBS])
+case $mdw_cv_syslog_lib in
+ none) LOGLIBS= ;;
+ *) LOGLIBS=$mdw_cv_syslog_lib ;;
+esac
+AC_SUBST([LOGLIBS])
dnl Find out whether very long integer types are available.
AC_CHECK_HEADERS([stdint.h])
AC_CHECK_HEADERS([linux/auxvec.h])
AC_CHECK_FUNCS([getauxval])
+dnl Some equipment for measuring CPU performance.
+AC_CHECK_HEADERS([linux/perf_event.h])
+
dnl Find the bit lengths of the obvious integer types. This will be useful
dnl when deciding on a representation for multiprecision integers.
type_bits="" type_bits_sep=""
dnl Memory locking support.
AC_CHECK_FUNCS([mlock])
+dnl See if we can find Valgrind's header files.
+AC_CHECK_HEADER([valgrind/memcheck.h],
+ AC_DEFINE([HAVE_VALGRIND_H], [1],
+ [Define if the Valgrind header files are available.])
+ [])
+
dnl Set the master libraries we need.
AC_SUBST([CATACOMB_LIBS])
dnl Necessary support libraries.
-PKG_CHECK_MODULES([mLib], [mLib >= 2.2.2.1])
+PKG_CHECK_MODULES([mLib], [mLib >= 2.4.1])
AM_CFLAGS="$AM_CFLAGS $mLib_CFLAGS"
dnl--------------------------------------------------------------------------
~mdw / catacomb / blobdiff