From c6fa03a427e3d1320794102cee3ff4f5ae00eb36 Mon Sep 17 00:00:00 2001 From: Lasse Collin Date: Thu, 24 May 2012 18:47:52 +0300 Subject: Fix compiling with IBM XL C on AIX. --- INSTALL | 36 ++++++++++++++++++++++-------------- configure.ac | 6 +++++- 2 files changed, 27 insertions(+), 15 deletions(-) diff --git a/INSTALL b/INSTALL index 992f9073..fd0eca06 100644 --- a/INSTALL +++ b/INSTALL @@ -6,13 +6,14 @@ XZ Utils Installation 1. Supported platforms 1.1. Compilers 1.2. Platform-specific notes - 1.2.1. IRIX - 1.2.2. MINIX 3 - 1.2.3. OpenVMS - 1.2.4. Solaris, OpenSolaris, and derivatives - 1.2.5. Tru64 - 1.2.6. Windows - 1.2.7. DOS + 1.2.1. AIX + 1.2.2. IRIX + 1.2.3. MINIX 3 + 1.2.4. OpenVMS + 1.2.5. Solaris, OpenSolaris, and derivatives + 1.2.6. Tru64 + 1.2.7. Windows + 1.2.8. DOS 1.3. Adding support for new platforms 2. configure options 2.1. Static vs. dynamic linking of liblzma @@ -63,7 +64,14 @@ XZ Utils Installation 1.2. Platform-specific notes -1.2.1. IRIX +1.2.1. AIX + + If you use IBM XL C compiler, pass CC=xlc_r to configure. If + you use CC=xlc instead, you must disable threading support + with --disable-threads (usually not recommended). + + +1.2.2. IRIX MIPSpro 7.4.4m has been reported to produce broken code if using the -O2 optimization flag ("make check" fails). Using -O1 should @@ -74,7 +82,7 @@ XZ Utils Installation putting "-64" to CFLAGS to build a 64-bit version might help too. -1.2.2. MINIX 3 +1.2.3. MINIX 3 The default install of MINIX 3 includes Amsterdam Compiler Kit (ACK), which doesn't support C99. Install GCC to compile XZ Utils. @@ -91,7 +99,7 @@ XZ Utils Installation may want to pass gl_cv_cc_visibility=no to configure). -1.2.3. OpenVMS +1.2.4. OpenVMS XZ Utils can be built for OpenVMS, but the build system files are not included in the XZ Utils source package. The required @@ -101,7 +109,7 @@ XZ Utils Installation http://nchrem.tnw.tudelft.nl/openvms/software2.html#xzutils -1.2.4. Solaris, OpenSolaris, and derivatives +1.2.5. Solaris, OpenSolaris, and derivatives The following linker error has been reported on some x86 systems: @@ -111,14 +119,14 @@ XZ Utils Installation as an argument to the configure script. -1.2.5. Tru64 +1.2.6. Tru64 If you try to use the native C compiler on Tru64 (passing CC=cc to configure), you may need the workaround mention in section 4.1 in this file (pass also ac_cv_prog_cc_c99= to configure). -1.2.6. Windows +1.2.7. Windows Building XZ Utils on Windows is supported under MinGW + MSYS, MinGW-w64 + MSYS, and Cygwin. There is windows/build.bash to @@ -138,7 +146,7 @@ XZ Utils Installation windows/README-Windows.txt for details. -1.2.7. DOS +1.2.8. DOS There is an experimental Makefile in the "dos" directory to build XZ Utils on DOS using DJGPP. Support for long file names (LFN) is diff --git a/configure.ac b/configure.ac index 88d35241..f0ccef94 100644 --- a/configure.ac +++ b/configure.ac @@ -434,7 +434,11 @@ if test "x$enable_threads" = xyes; then AX_PTHREAD LIBS="$LIBS $PTHREAD_LIBS" AM_CFLAGS="$AM_CFLAGS $PTHREAD_CFLAGS" - CC="$PTHREAD_CC" + + dnl NOTE: PTHREAD_CC is ignored. It would be useful on AIX, but + dnl it's tricky to get it right together with AC_PROG_CC_C99. + dnl Thus, this is handled by telling the user in INSTALL to set + dnl the correct CC manually. fi echo -- cgit v1.2.3