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| author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1998-09-30 20:58:39 +0000 |
|---|---|---|
| committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1998-09-30 20:58:39 +0000 |
| commit | 2c3840b563a453eb6f311cdc20ff7dd1ef365665 (patch) | |
| tree | 9fe548746c7441048412c0442489fd4967507fcf /aclocal.m4 | |
| parent | Corrected TYPOs in the file (diff) | |
| download | rtems-2c3840b563a453eb6f311cdc20ff7dd1ef365665.tar.bz2 | |
Added new autoconf test for i386 code16/code32 support. The guts of the
test were suggested by Ian Taylor <ian@airs.com> and Joel did the
hard part of putting it in aclocal and editting all the offending
Makefiles and source code which could use this feature.
Diffstat (limited to '')
| -rw-r--r-- | aclocal.m4 | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/aclocal.m4 b/aclocal.m4 index 00a89d46b8..5297bf3fde 100644 --- a/aclocal.m4 +++ b/aclocal.m4 @@ -1,6 +1,8 @@ dnl aclocal.m4 generated automatically by aclocal 1.2 +dnl dnl $Id$ +dnl dnl macro to detect mkdir AC_DEFUN(RTEMS_PATH_MKDIR, @@ -40,7 +42,9 @@ AC_MSG_RESULT($rtems_cv_prog_MKDIR_M) ]) +dnl dnl $Id$ +dnl dnl canonicalize target name dnl NOTE: Most rtems targets do not fullfil autoconf's @@ -56,6 +60,9 @@ changequote([, ])dnl AC_MSG_RESULT($target_cpu) ]) +dnl +dnl $Id$ +dnl dnl Set program_prefix dnl dnl 98/05/20 Ralf Corsepius (corsepiu@faw.uni-ulm.de) @@ -259,6 +266,7 @@ unset ac_cv_prog_cxx_works unset ac_cv_prog_cxx_cross ]) +dnl dnl $Id$ dnl dnl Set target tools @@ -355,6 +363,10 @@ dnl NOTE: These may not be available if not using gnutools RTEMS_PATH_TOOL(SIZE_FOR_TARGET,size,no) ]) +dnl +dnl $Id$ +dnl + AC_DEFUN(RTEMS_AR_FOR_TARGET_S, [ AC_CACHE_CHECK(whether $AR_FOR_TARGET -s works, @@ -377,6 +389,33 @@ fi ]) +dnl +dnl $Id$ +dnl + +dnl check for i386 gas supporting 16 bit mode + +AC_DEFUN(RTEMS_I386_GAS_CODE16, + if test "${target_cpu}" = "i386"; then + AC_CACHE_CHECK([for 16 bit mode assembler support], + rtems_cv_prog_gas_code16, + [cat > conftest.s << EOF + .code16 + data32 addr32 lgdt 0 +EOF + if AC_TRY_COMMAND($AS_FOR_TARGET -o conftest.o conftest.s); then + rtems_cv_prog_gas_code16=yes + else + rtems_cv_prog_gas_code16=no + fi]) + RTEMS_GAS_CODE16="$rtems_cv_prog_gas_code16" + fi +) + + +dnl +dnl $Id$ +dnl dnl Detect the Cygwin32 environment (unix under Win32) dnl dnl 98/06/16 David Fiddes (D.J.Fiddes@hw.ac.uk) @@ -396,6 +435,9 @@ CYGWIN32= test "$rtems_cv_cygwin32" = yes && CYGWIN32=yes]) +dnl +dnl $Id$ +dnl dnl Set the EXE extension dnl dnl 98/06/16 David Fiddes (D.J.Fiddes@hw.ac.uk) @@ -529,7 +571,9 @@ rtems_cv_sysv_msg="yes", rtems_cv_sysv_msg="no", :) ]) ]) +dnl dnl $Id$ +dnl dnl RTEMS_CHECK_MAKEFILE(path) dnl Search for Makefile.in's within the directory starting @@ -540,12 +584,15 @@ AC_DEFUN(RTEMS_CHECK_MAKEFILE, [RTEMS_CHECK_FILES_IN($1,Makefile,makefiles) ]) +dnl dnl $Id$ +dnl dnl RTEMS_CHECK_FILES_IN(path,file,var) dnl path .. path relative to srcdir, where to start searching for files dnl file .. name of the files to search for dnl var .. shell variable to append files found + AC_DEFUN(RTEMS_CHECK_FILES_IN, [ AC_MSG_CHECKING(for $2.in in $1) |