[svn-r18415] Description:

    Move the libhdf5.settings information out of src/H5Tinit.c and into a
separate header file (src/H5lib_settings.h), which is generated at build time
(not configure time) with the src/H5make_libsettings generator program.

Tested on:
    Linux/32 2.6 (jam)
    Mac OS X/32 10.6.2 (amazon)

7 files changed, 326 insertions, 109 deletions

diff --git a/configure b/configure
index 56aa8d1..093f543 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Id: configure.in 18406 2010-03-14 15:04:16Z hdftest .
+# From configure.in Id: configure.in 18413 2010-03-17 21:38:20Z koziol .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.64 for HDF5 1.9.63.
 #
diff --git a/src/H5.c b/src/H5.c
index 6bd96cb..ed19b50 100644
--- a/src/H5.c
+++ b/src/H5.c
@@ -22,6 +22,8 @@
 /* Headers */
 /***********/
 #include "H5private.h"		/* Generic Functions			*/
+#include "H5lib_settings.h"     /* Library build setings		*/
+#include "H5ACprivate.h"	/* Metadata cache			*/
 #include "H5Dprivate.h"		/* Datasets				*/
 #include "H5Eprivate.h"		/* Error handling		  	*/
 #include "H5FLprivate.h"	/* Free lists                           */
diff --git a/src/H5detect.c b/src/H5detect.c
index ebd042d..8fc1690 100644
--- a/src/H5detect.c
+++ b/src/H5detect.c
@@ -109,7 +109,6 @@ static void detect_C99_integers32(void);
 static void detect_C99_integers64(void);
 static void detect_alignments(void);
 static void insert_libhdf5_settings(FILE *flibinfo);
-static void make_libinfo(void);
 static size_t align_g[] = {1, 2, 4, 8, 16};
 static jmp_buf jbuf_g;
 
@@ -504,99 +503,6 @@ sigbus_handler(int UNUSED signo)
 
 
 /*-------------------------------------------------------------------------
- * Function:	insert_libhdf5_settings
- *
- * Purpose:	insert the contents of libhdf5.settings into a file
- *		represented by flibinfo.
- *		Make it an empty string if H5_HAVE_EMBEDDED_LIBINFO is not
- *		defined, i.e., not enabled.
- *
- * Return:	void
- *
- * Programmer:	Albert Cheng
- *		Apr 20, 2009
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-#define LIBSETTINGSFNAME "libhdf5.settings"
-static void
-insert_libhdf5_settings(FILE *flibinfo)
-{
-#ifdef H5_HAVE_EMBEDDED_LIBINFO
-    FILE *fsettings;	/* for files libhdf5.settings */
-    int inchar;
-    int	bol=0;	/* indicates the beginning of a new line */
-
-    if (NULL==(fsettings=HDfopen(LIBSETTINGSFNAME, "r"))){
-        perror(LIBSETTINGSFNAME);
-        exit(1);
-    }
-    /* print variable definition and the string */
-    fprintf(flibinfo, "char H5libhdf5_settings[]=\n");
-    bol++;
-    while (EOF != (inchar = getc(fsettings))){
-	if (bol){
-	    /* Start a new line */
-	    fprintf(flibinfo, "\t\"");
-	    bol = 0;
-	}
-	if (inchar == '\n'){
-	    /* end of a line */
-	    fprintf(flibinfo, "\\n\"\n");
-	    bol++;
-	}else{
-	    putc(inchar, flibinfo);
-	}
-    }
-    if (feof(fsettings)){
-	/* wrap up */
-	if (!bol){
-	    /* EOF found without a new line */
-	    fprintf(flibinfo, "\\n\"\n");
-	};
-	fprintf(flibinfo, ";\n\n");
-    }else{
-	fprintf(stderr, "Read errors encountered with %s\n", LIBSETTINGSFNAME);
-	exit(1);
-    }
-    if (0 != fclose(fsettings)){
-	perror(LIBSETTINGSFNAME);
-	exit(1);
-    }
-#else
-    /* print variable definition and an empty string */
-    fprintf(flibinfo, "char H5libhdf5_settings[]=\"\";\n");
-#endif
-}
-
-
-/*-------------------------------------------------------------------------
- * Function:	make_libinfo
- *
- * Purpose:	Create the embedded library information definition.
- * 		This sets up for a potential extension that the declaration
- *		is printed to a file different from stdout.
- *
- * Return:	void
- *
- * Programmer:	Albert Cheng
- *		Sep 15, 2009
- *
- * Modifications:
- *
- *-------------------------------------------------------------------------
- */
-static void
-make_libinfo(void)
-{
-    /* print variable definition and then the string as a macro. */
-    insert_libhdf5_settings(stdout);
-}
-
-
-/*-------------------------------------------------------------------------
  * Function:	print_results
  *
  * Purpose:	Prints information about the detected data types.
@@ -677,9 +583,6 @@ print_results(int nd, detected_t *d, int na, malign_t *misc_align)
 /*******************/\n\
 \n");
 
-    /* Generate embedded library information variable definition */
-    make_libinfo();
-
     /* The interface initialization function */
     printf("\n\
 \n\
@@ -1154,8 +1057,8 @@ find_bias(int epos, int esize, int *perm, void *_a)
 
 /*-------------------------------------------------------------------------
  * Function:	print_header
-     *
-     * Purpose:	Prints the C file header for the generated file.
+ *
+ * Purpose:	Prints the C file header for the generated file.
  *
  * Return:	void
  *
diff --git a/src/H5make_libsettings.c b/src/H5make_libsettings.c
new file mode 100644
index 0000000..771c510
--- /dev/null
+++ b/src/H5make_libsettings.c
@@ -0,0 +1,278 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by The HDF Group.                                               *
+ * Copyright by the Board of Trustees of the University of Illinois.         *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the files COPYING and Copyright.html.  COPYING can be found at the root   *
+ * of the source code distribution tree; Copyright.html can be found at the  *
+ * root level of an installed copy of the electronic HDF5 document set and   *
+ * is linked from the top-level documents page.  It can also be found at     *
+ * http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *
+ * access to either file, you may request a copy from help@hdfgroup.org.     *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*keep this declaration near the top of this file -RPM*/
+static const char *FileHeader = "\n\
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *\n\
+ * Copyright by The HDF Group.                                               *\n\
+ * Copyright by the Board of Trustees of the University of Illinois.         *\n\
+ * All rights reserved.                                                      *\n\
+ *                                                                           *\n\
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *\n\
+ * terms governing use, modification, and redistribution, is contained in    *\n\
+ * the files COPYING and Copyright.html.  COPYING can be found at the root   *\n\
+ * of the source code distribution tree; Copyright.html can be found at the  *\n\
+ * root level of an installed copy of the electronic HDF5 document set and   *\n\
+ * is linked from the top-level documents page.  It can also be found at     *\n\
+ * http://hdfgroup.org/HDF5/doc/Copyright.html.  If you do not have          *\n\
+ * access to either file, you may request a copy from help@hdfgroup.org.     *\n\
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *";
+/*
+ *
+ * Created:	H5make_libsettings.c
+ *		17 Mar 2010
+ *		Quincey Koziol
+ *
+ * Purpose:	Generate the H5libsettings.h header file from the
+ *		libhdf5.settings file.
+ *
+ *-------------------------------------------------------------------------
+ */
+#include <stdio.h>
+#include <time.h>
+#include "H5private.h"
+
+#define LIBSETTINGSFNAME "libhdf5.settings"
+
+
+/*-------------------------------------------------------------------------
+ * Function:	insert_libhdf5_settings
+ *
+ * Purpose:	insert the contents of libhdf5.settings into a file
+ *		represented by flibinfo.
+ *		Make it an empty string if H5_HAVE_EMBEDDED_LIBINFO is not
+ *		defined, i.e., not enabled.
+ *
+ * Return:	void
+ *
+ * Programmer:	Albert Cheng
+ *		Apr 20, 2009
+ *
+ *-------------------------------------------------------------------------
+ */
+static void
+insert_libhdf5_settings(FILE *flibinfo)
+{
+#ifdef H5_HAVE_EMBEDDED_LIBINFO
+    FILE *fsettings;	/* for files libhdf5.settings */
+    int inchar;
+    int	bol=0;	/* indicates the beginning of a new line */
+
+    if (NULL==(fsettings=HDfopen(LIBSETTINGSFNAME, "r"))){
+        perror(LIBSETTINGSFNAME);
+        exit(1);
+    }
+    /* print variable definition and the string */
+    fprintf(flibinfo, "static const char H5libhdf5_settings[]=\n");
+    bol++;
+    while (EOF != (inchar = getc(fsettings))){
+	if (bol){
+	    /* Start a new line */
+	    fprintf(flibinfo, "\t\"");
+	    bol = 0;
+	}
+	if (inchar == '\n'){
+	    /* end of a line */
+	    fprintf(flibinfo, "\\n\"\n");
+	    bol++;
+	}else{
+	    putc(inchar, flibinfo);
+	}
+    }
+    if (feof(fsettings)){
+	/* wrap up */
+	if (!bol){
+	    /* EOF found without a new line */
+	    fprintf(flibinfo, "\\n\"\n");
+	};
+	fprintf(flibinfo, ";\n\n");
+    }else{
+	fprintf(stderr, "Read errors encountered with %s\n", LIBSETTINGSFNAME);
+	exit(1);
+    }
+    if (0 != fclose(fsettings)){
+	perror(LIBSETTINGSFNAME);
+	exit(1);
+    }
+#else
+    /* print variable definition and an empty string */
+    fprintf(flibinfo, "static const char H5libhdf5_settings[]=\"\";\n");
+#endif
+} /* insert_libhdf5_settings() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	make_libinfo
+ *
+ * Purpose:	Create the embedded library information definition.
+ * 		This sets up for a potential extension that the declaration
+ *		is printed to a file different from stdout.
+ *
+ * Return:	void
+ *
+ * Programmer:	Albert Cheng
+ *		Sep 15, 2009
+ *
+ *-------------------------------------------------------------------------
+ */
+static void
+make_libinfo(void)
+{
+    /* print variable definition and then the string as a macro. */
+    insert_libhdf5_settings(stdout);
+}
+
+
+/*-------------------------------------------------------------------------
+ * Function:	print_header
+ *
+ * Purpose:	Prints the C file header for the generated file.
+ *
+ * Return:	void
+ *
+ * Programmer:	Robb Matzke
+ *		matzke@llnl.gov
+ *		Mar 12 1997
+ *
+ * Modifications:
+ *
+ *-------------------------------------------------------------------------
+ */
+static void
+print_header(void)
+{
+    time_t		now = time(NULL);
+    struct tm		*tm = localtime(&now);
+    char		real_name[30];
+    char		host_name[256];
+    int			i;
+    const char		*s;
+#ifdef H5_HAVE_GETPWUID
+    struct passwd	*pwd = NULL;
+#else
+    int			pwd = 1;
+#endif
+    static const char	*month_name[] =
+    {
+	"Jan", "Feb", "Mar", "Apr", "May", "Jun",
+	"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
+    static const char	*purpose = "\
+This machine-generated source code contains\n\
+information about the library build configuration\n";
+
+    /*
+     * The real name is the first item from the passwd gecos field.
+     */
+#ifdef H5_HAVE_GETPWUID
+    {
+	size_t n;
+	char *comma;
+	if ((pwd = getpwuid(getuid()))) {
+	    if ((comma = strchr(pwd->pw_gecos, ','))) {
+		n = MIN(sizeof(real_name)-1, (unsigned)(comma-pwd->pw_gecos));
+		strncpy(real_name, pwd->pw_gecos, n);
+		real_name[n] = '\0';
+	    } else {
+		strncpy(real_name, pwd->pw_gecos, sizeof(real_name));
+		real_name[sizeof(real_name) - 1] = '\0';
+	    }
+	} else {
+	    real_name[0] = '\0';
+	}
+    }
+#else
+    real_name[0] = '\0';
+#endif
+
+    /*
+     * The FQDM of this host or the empty string.
+     */
+#ifdef H5_HAVE_GETHOSTNAME
+    if (gethostname(host_name, sizeof(host_name)) < 0) {
+	host_name[0] = '\0';
+    }
+#else
+    host_name[0] = '\0';
+#endif
+
+    /*
+     * The file header: warning, copyright notice, build information.
+     */
+    printf("/* Generated automatically by H5make_libsettings -- do not edit */\n\n\n");
+    puts(FileHeader);		/*the copyright notice--see top of this file */
+
+    printf(" *\n * Created:\t\t%s %2d, %4d\n",
+	   month_name[tm->tm_mon], tm->tm_mday, 1900 + tm->tm_year);
+    if (pwd || real_name[0] || host_name[0]) {
+	printf(" *\t\t\t");
+	if (real_name[0]) printf("%s <", real_name);
+#ifdef H5_HAVE_GETPWUID
+	if (pwd) fputs(pwd->pw_name, stdout);
+#endif
+	if (host_name[0]) printf("@%s", host_name);
+	if (real_name[0]) printf(">");
+	putchar('\n');
+    }
+    printf(" *\n * Purpose:\t\t");
+    for (s = purpose; *s; s++) {
+	putchar(*s);
+	if ('\n' == *s && s[1]) printf(" *\t\t\t");
+    }
+
+    printf(" *\n * Modifications:\n *\n");
+    printf(" *\tDO NOT MAKE MODIFICATIONS TO THIS FILE!\n");
+    printf(" *\tIt was generated by code in `H5make_libsettings.c'.\n");
+
+    printf(" *\n *");
+    for (i = 0; i < 73; i++) putchar('-');
+    printf("\n */\n\n");
+
+}
+
+
+/*-------------------------------------------------------------------------
+ * Function:	main
+ *
+ * Purpose:	Main entry point.
+ *
+ * Return:	Success:	exit(0)
+ *
+ *		Failure:	exit(1)
+ *
+ * Programmer:	Robb Matzke
+ *		matzke@llnl.gov
+ *		Jun 12, 1996
+ *
+ * Modifications:
+ *	Albert Cheng, 2004/05/20
+ *	Some compilers, e.g., Intel C v7.0, took a long time to compile
+ *      with optimization when a module routine contains many code lines.
+ *      Divide up all those types detections macros into subroutines, both
+ *      to avoid the compiler optimization error and cleaner codes.
+ *
+ *-------------------------------------------------------------------------
+ */
+int
+main(void)
+{
+
+    print_header();
+
+    /* Generate embedded library information variable definition */
+    make_libinfo();
+
+    return 0;
+}
+
diff --git a/src/H5private.h b/src/H5private.h
index c0b5054..5be50bc 100644
--- a/src/H5private.h
+++ b/src/H5private.h
@@ -1535,7 +1535,6 @@ typedef struct H5_debug_t {
 
 extern H5_debug_t		H5_debug_g;
 #define H5DEBUG(X)		(H5_debug_g.pkg[H5_PKG_##X].stream)
-extern char H5libhdf5_settings[];	/* embedded library information */
 
 /*-------------------------------------------------------------------------
  * Purpose:	These macros are inserted automatically just after the
diff --git a/src/Makefile.am b/src/Makefile.am
index da81ee2..735cf9d 100755
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -26,7 +26,7 @@ include $(top_srcdir)/config/lt_vers.am
 # Use -g to force no optimization since many compilers (e.g., Intel) takes
 # a long time to compile it with any optimization on.  H5detect is used
 # to generate H5Tinit.c once. So, optimization is not critical.
-noinst_PROGRAMS = H5detect
+noinst_PROGRAMS = H5detect H5make_libsettings
 H5detect_CFLAGS = -g $(AM_CFLAGS)
 
 # Our main target, the HDF5 library
@@ -36,7 +36,7 @@ lib_LTLIBRARIES=libhdf5.la
 libhdf5_la_LDFLAGS= -version-info $(LT_VERS_INTERFACE):$(LT_VERS_REVISION):$(LT_VERS_AGE) $(AM_LDFLAGS)
 
 # H5Tinit.c is a generated file, and should be cleaned.
-MOSTLYCLEANFILES=H5Tinit.c
+MOSTLYCLEANFILES=H5Tinit.c H5lib_settings.h
 # H5pubconf.h is generated by configure, and should be cleaned.
 DISTCLEANFILES=H5pubconf.h
 
@@ -127,13 +127,27 @@ settings_DATA=libhdf5.settings
 # Things should have been all set during H5detect making.
 # Remove the generated .c file if errors occur unless HDF5_Make_Ignore
 # is set to ignore the error.
-H5Tinit.c: H5detect$(EXEEXT) libhdf5.settings
+H5Tinit.c: H5detect$(EXEEXT)
 	LD_LIBRARY_PATH="$$LD_LIBRARY_PATH`echo $(LDFLAGS) |                  \
 		sed -e 's/-L/:/g' -e 's/ //g'`"                               \
 	$(RUNSERIAL) ./H5detect$(EXEEXT) > H5Tinit.c  ||                               \
 	    (test $$HDF5_Make_Ignore && echo "*** Error ignored") ||          \
 	    ($(RM) $@ ; exit 1)
 
+H5.o H5.lo: H5lib_settings.h
+
+# Build configuration header file generation
+# The LD_LIBRARY_PATH setting is a kludge.
+# Things should have been all set during H5make_libsettings making.
+# Remove the generated .h file if errors occur unless HDF5_Make_Ignore
+# is set to ignore the error.
+H5lib_settings.h: H5make_libsettings$(EXEEXT) libhdf5.settings
+	LD_LIBRARY_PATH="$$LD_LIBRARY_PATH`echo $(LDFLAGS) |                  \
+		sed -e 's/-L/:/g' -e 's/ //g'`"                               \
+	$(RUNSERIAL) ./H5make_libsettings$(EXEEXT) > H5lib_settings.h  ||                               \
+	    (test $$HDF5_Make_Ignore && echo "*** Error ignored") ||          \
+	    ($(RM) $@ ; exit 1)
+
 # Error header generation
 #
 # Actually, H5Einit.h, H5Eterm.h, H5Edefin.h and H5Epubgen.h all
diff --git a/src/Makefile.in b/src/Makefile.in
index b1bc85f..862dd5d 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -59,7 +59,7 @@ DIST_COMMON = $(include_HEADERS) $(srcdir)/H5config.h.in \
 	$(srcdir)/libhdf5.settings.in $(top_srcdir)/config/commence.am \
 	$(top_srcdir)/config/conclude.am \
 	$(top_srcdir)/config/lt_vers.am COPYING
-noinst_PROGRAMS = H5detect$(EXEEXT)
+noinst_PROGRAMS = H5detect$(EXEEXT) H5make_libsettings$(EXEEXT)
 TESTS =
 subdir = src
 ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
@@ -157,6 +157,9 @@ H5detect_LDADD = $(LDADD)
 H5detect_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 	--mode=link $(CCLD) $(H5detect_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
 	$(LDFLAGS) -o $@
+H5make_libsettings_SOURCES = H5make_libsettings.c
+H5make_libsettings_OBJECTS = H5make_libsettings.$(OBJEXT)
+H5make_libsettings_LDADD = $(LDADD)
 DEFAULT_INCLUDES = -I.@am__isrc@
 depcomp = $(SHELL) $(top_srcdir)/bin/depcomp
 am__depfiles_maybe = depfiles
@@ -170,8 +173,8 @@ CCLD = $(CC)
 LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
 	--mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
 	$(LDFLAGS) -o $@
-SOURCES = $(libhdf5_la_SOURCES) H5detect.c
-DIST_SOURCES = $(libhdf5_la_SOURCES) H5detect.c
+SOURCES = $(libhdf5_la_SOURCES) H5detect.c H5make_libsettings.c
+DIST_SOURCES = $(libhdf5_la_SOURCES) H5detect.c H5make_libsettings.c
 DATA = $(settings_DATA)
 HEADERS = $(include_HEADERS)
 ETAGS = etags
@@ -451,7 +454,7 @@ lib_LTLIBRARIES = libhdf5.la
 libhdf5_la_LDFLAGS = -version-info $(LT_VERS_INTERFACE):$(LT_VERS_REVISION):$(LT_VERS_AGE) $(AM_LDFLAGS)
 
 # H5Tinit.c is a generated file, and should be cleaned.
-MOSTLYCLEANFILES = H5Tinit.c
+MOSTLYCLEANFILES = H5Tinit.c H5lib_settings.h
 # H5pubconf.h is generated by configure, and should be cleaned.
 DISTCLEANFILES = H5pubconf.h
 
@@ -652,6 +655,9 @@ clean-noinstPROGRAMS:
 H5detect$(EXEEXT): $(H5detect_OBJECTS) $(H5detect_DEPENDENCIES) 
 	@rm -f H5detect$(EXEEXT)
 	$(H5detect_LINK) $(H5detect_OBJECTS) $(H5detect_LDADD) $(LIBS)
+H5make_libsettings$(EXEEXT): $(H5make_libsettings_OBJECTS) $(H5make_libsettings_DEPENDENCIES) 
+	@rm -f H5make_libsettings$(EXEEXT)
+	$(LINK) $(H5make_libsettings_OBJECTS) $(H5make_libsettings_LDADD) $(LIBS)
 
 mostlyclean-compile:
 	-rm -f *.$(OBJEXT)
@@ -911,6 +917,7 @@ distclean-compile:
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/H5checksum.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/H5dbg.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/H5detect-H5detect.Po@am__quote@
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/H5make_libsettings.Po@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/H5system.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/H5timer.Plo@am__quote@
 @AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/H5trace.Plo@am__quote@
@@ -1235,13 +1242,27 @@ help:
 # Things should have been all set during H5detect making.
 # Remove the generated .c file if errors occur unless HDF5_Make_Ignore
 # is set to ignore the error.
-H5Tinit.c: H5detect$(EXEEXT) libhdf5.settings
+H5Tinit.c: H5detect$(EXEEXT)
 	LD_LIBRARY_PATH="$$LD_LIBRARY_PATH`echo $(LDFLAGS) |                  \
 		sed -e 's/-L/:/g' -e 's/ //g'`"                               \
 	$(RUNSERIAL) ./H5detect$(EXEEXT) > H5Tinit.c  ||                               \
 	    (test $$HDF5_Make_Ignore && echo "*** Error ignored") ||          \
 	    ($(RM) $@ ; exit 1)
 
+H5.o H5.lo: H5lib_settings.h
+
+# Build configuration header file generation
+# The LD_LIBRARY_PATH setting is a kludge.
+# Things should have been all set during H5make_libsettings making.
+# Remove the generated .h file if errors occur unless HDF5_Make_Ignore
+# is set to ignore the error.
+H5lib_settings.h: H5make_libsettings$(EXEEXT) libhdf5.settings
+	LD_LIBRARY_PATH="$$LD_LIBRARY_PATH`echo $(LDFLAGS) |                  \
+		sed -e 's/-L/:/g' -e 's/ //g'`"                               \
+	$(RUNSERIAL) ./H5make_libsettings$(EXEEXT) > H5lib_settings.h  ||                               \
+	    (test $$HDF5_Make_Ignore && echo "*** Error ignored") ||          \
+	    ($(RM) $@ ; exit 1)
+
 # Error header generation
 #
 # Actually, H5Einit.h, H5Eterm.h, H5Edefin.h and H5Epubgen.h all