HP-UX 10.20 has pseudo-long-double which shouldn't be used.

[perl5.git] / hints / irix_6.sh

diff --git a/hints/irix_6.sh b/hints/irix_6.sh
index 93d6618..fc315a5 100644 (file)
--- a/hints/irix_6.sh
+++ b/hints/irix_6.sh
@@ -102,7 +102,12 @@ $cat > UU/cc.cbu <<'EOCCBU'
 # has prompted the user for the C compiler to use.
 
 case "$cc" in
-*gcc*) ;;
+*gcc*)
+  # With cc we can use -c99, but with gcc we just can't use C99 headers.
+  # (There is a hidden define __c99 that cc uses, but trying to use that
+  # with gcc leads into magnificent explosions.)
+  i_stdint='undef'
+  ;;
 *) ccversion=`cc -version 2>&1` ;;
 esac
 
@@ -192,7 +197,7 @@ esac'
        case "`uname -s`" in
        # Without the -mabi=64 gcc in 64-bit IRIX has problems passing
        # and returning small structures.  This affects inet_*() and semctl().
-       # See http://reality.sgi.com/ariel/freeware/gcc-2.8.1-notes.html
+       # See http://groups.google.com/group/comp.sys.sgi.admin/msg/3ad8353bc4ce3cb0
        # for more information.  Reported by Lionel Cons <lionel.cons@cern.ch>.
        IRIX64) ccflags="$ccflags -mabi=64"
                ldflags="$ldflags -mabi=64 -L/usr/lib64"
@@ -237,6 +242,7 @@ case "$cc" in
 
        # Warnings to turn off because the source code hasn't
        # been cleaned up enough yet to satisfy the IRIX cc.
+       # 1047: macro redefinitions (in IRIX' own system headers!)
        # 1184: "=" is used where where "==" may have been intended.
        # 1552: The variable "foobar" is set but never used.
        woff=1184,1552
@@ -284,6 +290,9 @@ case "$cc" in
                '-O') optimize='-O3 -OPT:Olimit=0:space=ON' ;;
                *) ;;
             esac
+           # Perl source has just grown too chummy with c99
+           # (headerwise, not code-wise: we use <stdint.h> and such)
+           ccflags="$ccflags -c99"
             ;;
        *6.2*)                        # Ragnarok 6.2
             ccflags="$ccflags -D_BSD_TYPES -D_BSD_TIME -woff $woff"
@@ -351,6 +360,26 @@ case "$ccversion" in
     ;;
 esac
 
+# There is a devious bug in the MIPSpro 7.4 compiler:
+# memcmp() is an inlined intrinsic, and "sometimes" it gets compiled wrong.
+#
+# In Perl the most obvious hit is regcomp.c:S_regpposixcc(),
+# causing bus errors when compiling the POSIX character classes like
+# /[[:digit:]], which means that miniperl cannot build perl.
+# (That is almost only the one victim: one single test in re/pat fails, also.)
+#
+# Therefore let's turn the inline intrinsics off and let the normal
+# libc versions be used instead. This may cause a performance hit
+# but a little slower is better than zero speed.
+#
+# MIPSpro C 7.4.1m is supposed to have fixed this bug.
+#
+case "$ccversion" in
+"MIPSpro Compilers: Version 7.4")
+  ccflags="$ccflags -U__INLINE_INTRINSICS"
+  ;;
+esac
+
 EOCCBU
 
 # End of cc.cbu callback unit. - Allen
@@ -408,6 +437,10 @@ case "$ldflags" in
     *) ldflags="$ldflags -Wl,-woff,84" ;;
 esac
 
+# IRIX freeware kits sometimes have only o32 libraries for gdbm.
+# You can try Configure ... -Dlibswanted='m' -Dnoextensions='GDBM_File'
+# since the libm seems to be pretty much the only really needed library.
+
 # Irix 6.5.6 seems to have a broken header <sys/mode.h>
 # don't include that (it doesn't contain S_IFMT, S_IFREG, et al)
 
@@ -645,3 +678,8 @@ EOCBU
 # Helmut Jarausch reports that Perl's malloc is rather unusable
 # with IRIX, and SGI confirms the problem.
 usemymalloc=${usemymalloc:-false}
+
+# Configure finds <fcntl.h> but then thinks it can use <sys/file.h>
+# instead; in IRIX this is not true because the prototype of fcntl()
+# requires explicit include of <fcntl.h>
+i_fcntl=define