detect find location at configure time

configure.ac

@@ -87,6 +87,7 @@ AC_PROG_INSTALL
 AC_PROG_MKDIR_P
 AC_CHECK_PROGS(PROG_STAT,gstat stat)
 AC_CHECK_PROGS(PROG_DATE,gdate date)
+AC_CHECK_PROGS(PROG_FIND,find)
 
 dnl locate pkg-config
 PKG_PROG_PKG_CONFIG

doc/doxygen/Makefile.am

@@ -1,6 +1,6 @@
 # StarPU --- Runtime system for heterogeneous multicore architectures.
 #
-# Copyright (C) 2009-2020  Université de Bordeaux, CNRS (LaBRI UMR 5800), Inria
+# Copyright (C) 2009-2021  Université de Bordeaux, CNRS (LaBRI UMR 5800), Inria
 #
 # StarPU is free software; you can redistribute it and/or modify
 # it under the terms of the GNU Lesser General Public License as published by
@@ -41,7 +41,7 @@ endif
 DOX_HTML_SRCDIR=$(DOX_HTML_DIR)
 install-exec-hook:
 	$(MKDIR_P) $(DESTDIR)$(docdir)/manual/html
-	(cd $(DOX_HTML_SRCDIR) && find . -type f -exec $(INSTALL) -c -m 644 {} $(DESTDIR)$(docdir)/manual/html \;)
+	(cd $(DOX_HTML_SRCDIR) && $(PROG_FIND) . -type f -exec $(INSTALL_DATA) {} $(DESTDIR)$(docdir)/manual/html \;)
 uninstall-hook:
 	rm -rf $(DESTDIR)$(docdir)/manual/html
 else
@@ -50,7 +50,7 @@ EXTRA_DIST += $(top_srcdir)/doc/doxygen/html
 DOX_HTML_SRCDIR=$(top_srcdir)/doc/doxygen/html
 install-exec-hook:
 	$(MKDIR_P) $(DESTDIR)$(docdir)/manual/html
-	(cd $(DOX_HTML_SRCDIR) && find . -type f -exec $(INSTALL) -c -m 644 {} $(DESTDIR)$(docdir)/manual/html \;)
+	(cd $(DOX_HTML_SRCDIR) && $(PROG_FIND) . -type f -exec $(INSTALL_DATA) {} $(DESTDIR)$(docdir)/manual/html \;)
 uninstall-hook:
 	rm -rf $(DESTDIR)$(docdir)/manual/html
 endif

doc/doxygen_dev/Makefile.am

@@ -1,6 +1,6 @@
 # StarPU --- Runtime system for heterogeneous multicore architectures.
 #
-# Copyright (C) 2009-2020  Université de Bordeaux, CNRS (LaBRI UMR 5800), Inria
+# Copyright (C) 2009-2021  Université de Bordeaux, CNRS (LaBRI UMR 5800), Inria
 #
 # StarPU is free software; you can redistribute it and/or modify
 # it under the terms of the GNU Lesser General Public License as published by
@@ -41,7 +41,7 @@ endif
 DOX_HTML_SRCDIR=$(DOX_HTML_DIR)
 install-exec-hook:
 	$(MKDIR_P) $(DESTDIR)$(docdir)/manual/html_dev
-	(cd $(DOX_HTML_SRCDIR) && find . -type f -exec $(INSTALL) -c -m 644 {} $(DESTDIR)$(docdir)/manual/html_dev \;)
+	(cd $(DOX_HTML_SRCDIR) && $(PROG_FIND) . -type f -exec $(INSTALL_DATA) {} $(DESTDIR)$(docdir)/manual/html_dev \;)
 uninstall-hook:
 	rm -rf $(DESTDIR)$(docdir)/manual/html_dev
 else
@@ -50,7 +50,7 @@ EXTRA_DIST += $(top_srcdir)/doc/doxygen_dev/html_dev
 DOX_HTML_SRCDIR=$(top_srcdir)/doc/doxygen_dev/html_dev
 install-exec-hook:
 	$(MKDIR_P) $(DESTDIR)$(docdir)/manual/html_dev
-	(cd $(DOX_HTML_SRCDIR) && find . -type f -exec $(INSTALL) -c -m 644 {} $(DESTDIR)$(docdir)/manual/html_dev \;)
+	(cd $(DOX_HTML_SRCDIR) && $(PROG_FIND) . -type f -exec $(INSTALL_DATA) {} $(DESTDIR)$(docdir)/manual/html_dev \;)
 uninstall-hook:
 	rm -rf $(DESTDIR)$(docdir)/manual/html_dev
 endif