3 files changed, 48 insertions, 3 deletions

diff --git a/m4/check-libc.m4 b/m4/check-libc.m4
index 8cb849b..dadf0da 100644
--- a/m4/check-libc.m4
+++ b/m4/check-libc.m4
@@ -1,3 +1,18 @@
+#
+# Copyright (c) 2014 Brent Cook
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
 AC_DEFUN([CHECK_LIBC_COMPAT], [
 # Check for libc headers
 AC_CHECK_HEADERS([endian.h machine/endian.h err.h readpassphrase.h])
diff --git a/m4/check-os-options.m4 b/m4/check-os-options.m4
index 2ef4293..fd63d77 100644
--- a/m4/check-os-options.m4
+++ b/m4/check-os-options.m4
@@ -1,3 +1,18 @@
+#
+# Copyright (c) 2014 Brent Cook
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
 AC_DEFUN([CHECK_OS_OPTIONS], [
 
 CFLAGS="$CFLAGS -Wall -std=gnu99 -fno-strict-aliasing"
@@ -74,14 +89,14 @@ char buf[1]; getentropy(buf, 1);
                 ;;
         *hpux*)
                 HOST_OS=hpux;
-                if test "`echo $host_os | cut -c 1-4`" = "ia64" ; then
-                        if test "`echo $CC | cut -d ' ' -f 1`" = "gcc" ; then
+                if test "echo $host_os | cut -c 1-4" = "ia64" ; then
+                        if test "echo $CC | cut -d ' ' -f 1" = "gcc" ; then
                                 CFLAGS="$CFLAGS -mlp64"
                         else
                                 CFLAGS="+DD64"
                         fi
                 fi
-                if ! test "`echo $CC | cut -d ' ' -f 1`" = "gcc" ; then
+                if ! test "echo $CC | cut -d ' ' -f 1" = "gcc" ; then
                         CFLAGS="-g -O2 +Otype_safety=off $CFLAGS $USER_CFLAGS"
                 fi
                 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=600 -D__STRICT_ALIGNMENT"
diff --git a/m4/disable-compiler-warnings.m4 b/m4/disable-compiler-warnings.m4
index 2792722..052e8ab 100644
--- a/m4/disable-compiler-warnings.m4
+++ b/m4/disable-compiler-warnings.m4
@@ -1,3 +1,18 @@
+#
+# Copyright (c) 2014 Brent Cook
+#
+# Permission to use, copy, modify, and distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
 AC_DEFUN([DISABLE_COMPILER_WARNINGS], [
 # Clang throws a lot of warnings when it does not understand a flag. Disable
 # this warning for now so other warnings are visible.