add autogenerated jemalloc.sh wrapper script

.gitignore

@@ -21,3 +21,4 @@
 !test/*.c
 !test/*.exp
 /VERSION
+/bin/jemalloc.sh

Makefile.in

@@ -42,7 +42,7 @@ TEST_LIBRARY_PATH :=
 endif
 
 # Lists of files.
-BINS := @srcroot@bin/pprof
+BINS := @srcroot@bin/pprof @objroot@bin/jemalloc.sh
 CHDRS := @objroot@include/jemalloc/jemalloc@install_suffix@.h \
 	@objroot@include/jemalloc/jemalloc_defs@install_suffix@.h
 CSRCS := @srcroot@src/jemalloc.c @srcroot@src/arena.c @srcroot@src/atomic.c \

bin/jemalloc.sh.in

@@ -0,0 +1,9 @@
+#!/bin/sh
+
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+
+@LD_PRELOAD_VAR@=${libdir}/libjemalloc.@SHLIB_SUFFIX_NAME@.1
+export @LD_PRELOAD_VAR@
+exec "$@"

configure.ac

@@ -167,6 +167,9 @@ case "${host_cpu}" in
 esac
 AC_DEFINE_UNQUOTED([CPU_SPINWAIT], [$CPU_SPINWAIT])
 
+LD_PRELOAD_VAR="LD_PRELOAD"
+SHLIB_SUFFIX_NAME="so"
+
 dnl Platform-specific settings.  abi and RPATH can probably be determined
 dnl programmatically, but doing so is error-prone, which makes it generally
 dnl not worth the trouble.
@@ -180,6 +183,8 @@ case "${host}" in
 	abi="macho"
 	AC_DEFINE([JEMALLOC_PURGE_MADVISE_FREE])
 	RPATH=""
+	LD_PRELOAD_VAR="DYLD_INSERT_LIBRARIES"
+	SHLIB_SUFFIX_NAME="dylib"
 	;;
   *-*-freebsd*)
 	CFLAGS="$CFLAGS"
@@ -217,6 +222,17 @@ case "${host}" in
 	CPPFLAGS="$CPPFLAGS -D_POSIX_PTHREAD_SEMANTICS"
 	LIBS="$LIBS -lposix4 -lsocket -lnsl"
 	;;
+  *-ibm-aix*)
+	if "$LG_SIZEOF_PTR" = "8"; then
+	  dnl 64bit AIX
+	  LD_PRELOAD_VAR="LDR_PRELOAD64"
+	else
+	  dnl 32bit AIX
+	  LD_PRELOAD_VAR="LDR_PRELOAD"
+	fi
+	abi="xcoff"
+	RPATH="-Wl,-rpath,"
+	;;
   *)
 	AC_MSG_RESULT([Unsupported operating system: ${host}])
 	abi="elf"
@@ -225,6 +241,8 @@ case "${host}" in
 esac
 AC_SUBST([abi])
 AC_SUBST([RPATH])
+AC_SUBST([LD_PRELOAD_VAR])
+AC_SUBST([SHLIB_SUFFIX_NAME])
 
 JE_COMPILABLE([__attribute__ syntax],
               [static __attribute__((unused)) void foo(void){}],
@@ -881,7 +899,7 @@ AC_CONFIG_HEADERS([$cfghdrs_tup])
 
 dnl ============================================================================
 dnl Generate outputs.
-AC_CONFIG_FILES([$cfgoutputs_tup config.stamp])
+AC_CONFIG_FILES([$cfgoutputs_tup config.stamp bin/jemalloc.sh])
 AC_SUBST([cfgoutputs_in])
 AC_SUBST([cfgoutputs_out])
 AC_OUTPUT