summaryrefslogtreecommitdiff
path: root/srclib/pcre/config.in
diff options
context:
space:
mode:
Diffstat (limited to 'srclib/pcre/config.in')
-rw-r--r--srclib/pcre/config.in33
1 files changed, 26 insertions, 7 deletions
diff --git a/srclib/pcre/config.in b/srclib/pcre/config.in
index 7631d468cd..767cbd055c 100644
--- a/srclib/pcre/config.in
+++ b/srclib/pcre/config.in
@@ -3,9 +3,13 @@
written in Standard C, but there are a few non-standard things it can cope
with, allowing it to run on SunOS4 and other "close to standard" systems.
-On a non-Unix system you should just copy this file into config.h and change
-the definitions of HAVE_STRERROR and HAVE_MEMMOVE to 1. Unfortunately, because
-of the way autoconf works, these cannot be made the defaults. */
+On a non-Unix system you should just copy this file into config.h, and set up
+the macros the way you need them. You should normally change the definitions of
+HAVE_STRERROR and HAVE_MEMMOVE to 1. Unfortunately, because of the way autoconf
+works, these cannot be made the defaults. If your system has bcopy() and not
+memmove(), change the definition of HAVE_BCOPY instead of HAVE_MEMMOVE. If your
+system has neither bcopy() nor memmove(), leave them both as 0; an emulation
+function will be used. */
/* Define to empty if the keyword does not work. */
@@ -17,12 +21,27 @@ of the way autoconf works, these cannot be made the defaults. */
/* The following two definitions are mainly for the benefit of SunOS4, which
doesn't have the strerror() or memmove() functions that should be present in
-all Standard C libraries. The macros should normally be defined with the value
-1 for other systems, but unfortunately we can't make this the default because
-"configure" files generated by autoconf will only change 0 to 1; they won't
-change 1 to 0 if the functions are not found. */
+all Standard C libraries. The macros HAVE_STRERROR and HAVE_MEMMOVE should
+normally be defined with the value 1 for other systems, but unfortunately we
+can't make this the default because "configure" files generated by autoconf
+will only change 0 to 1; they won't change 1 to 0 if the functions are not
+found. */
#define HAVE_STRERROR 0
#define HAVE_MEMMOVE 0
+/* There are some non-Unix systems that don't even have bcopy(). If this macro
+is false, an emulation is used. If HAVE_MEMMOVE is set to 1, the value of
+HAVE_BCOPY is not relevant. */
+
+#define HAVE_BCOPY 0
+
+/* The value of NEWLINE determines the newline character. The default is to
+leave it up to the compiler, but some sites want to force a particular value.
+On Unix systems, "configure" can be used to override this default. */
+
+#ifndef NEWLINE
+#define NEWLINE '\n'
+#endif
+
/* End */