Add support for building with ZSTD.

This commit doesn't actually add anything that uses ZSTD; that will be
done separately. It just puts the basic infrastructure into place.

Jeevan Ladhe, Robert Haas, and Michael Paquier. Reviewed by Justin
Pryzby and Andres Freund.

Discussion: http://postgr.es/m/CA+TgmoatQKGd+8SjcV+bzvw4XaoEwminHjU83yG12+NXtQzTTQ@mail.gmail.com

1 files changed, 33 insertions, 0 deletions

diff --git a/configure.ac b/configure.ac
index 91a28cb50b6..331683b3363 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1057,6 +1057,30 @@ if test "$with_lz4" = yes; then
 fi
 
 #
+# ZSTD
+#
+AC_MSG_CHECKING([whether to build with ZSTD support])
+PGAC_ARG_BOOL(with, zstd, no, [build with ZSTD support],
+              [AC_DEFINE([USE_ZSTD], 1, [Define to 1 to build with ZSTD support. (--with-zstd)])])
+AC_MSG_RESULT([$with_zstd])
+AC_SUBST(with_zstd)
+
+if test "$with_zstd" = yes; then
+  PKG_CHECK_MODULES(ZSTD, libzstd)
+  # We only care about -I, -D, and -L switches;
+  # note that -lzstd will be added by AC_CHECK_LIB below.
+  for pgac_option in $ZSTD_CFLAGS; do
+    case $pgac_option in
+      -I*|-D*) CPPFLAGS="$CPPFLAGS $pgac_option";;
+    esac
+  done
+  for pgac_option in $ZSTD_LIBS; do
+    case $pgac_option in
+      -L*) LDFLAGS="$LDFLAGS $pgac_option";;
+    esac
+  done
+fi
+#
 # Assignments
 #
 
@@ -1325,6 +1349,10 @@ if test "$with_lz4" = yes ; then
   AC_CHECK_LIB(lz4, LZ4_compress_default, [], [AC_MSG_ERROR([library 'lz4' is required for LZ4 support])])
 fi
 
+if test "$with_zstd" = yes ; then
+  AC_CHECK_LIB(zstd, ZSTD_compress, [], [AC_MSG_ERROR([library 'zstd' is required for ZSTD support])])
+fi
+
 # Note: We can test for libldap_r only after we know PTHREAD_LIBS;
 # also, on AIX, we may need to have openssl in LIBS for this step.
 if test "$with_ldap" = yes ; then
@@ -1490,6 +1518,11 @@ if test "$with_lz4" = yes; then
   AC_CHECK_HEADERS(lz4.h, [], [AC_MSG_ERROR([lz4.h header file is required for LZ4])])
 fi
 
+PGAC_PATH_PROGS(ZSTD, zstd)
+if test "$with_zstd" = yes; then
+  AC_CHECK_HEADER(zstd.h, [], [AC_MSG_ERROR([zstd.h header file is required for ZSTD])])
+fi
+
 if test "$with_gssapi" = yes ; then
   AC_CHECK_HEADERS(gssapi/gssapi.h, [],
 	[AC_CHECK_HEADERS(gssapi.h, [], [AC_MSG_ERROR([gssapi.h header file is required for GSSAPI])])])