Merge branch 'rj/freebsd-sysinfo-build-fix'

Build fix for FreeBSD.

* rj/freebsd-sysinfo-build-fix:
  build: fix FreeBSD build when sysinfo compat library installed

Author: gitster

configure.ac

@@ -1067,32 +1067,6 @@ AC_CHECK_LIB([iconv], [locale_charset],
                      [CHARSET_LIB=-lcharset])])
 GIT_CONF_SUBST([CHARSET_LIB])
 
-#
-# Define HAVE_SYSINFO=YesPlease if sysinfo is available.
-#
-AC_DEFUN([HAVE_SYSINFO_SRC], [
-AC_LANG_PROGRAM([[
-#include <stdint.h>
-#include <sys/sysinfo.h>
-]], [[
-struct sysinfo si;
-uint64_t t = 0;
-if (!sysinfo(&si)) {
-	t = si.totalram;
-	if (si.mem_unit > 1)
-		t *= (uint64_t)si.mem_unit;
-}
-return t;
-]])])
-
-AC_MSG_CHECKING([for sysinfo])
-AC_COMPILE_IFELSE([HAVE_SYSINFO_SRC],
-	[AC_MSG_RESULT([yes])
-	HAVE_SYSINFO=YesPlease],
-	[AC_MSG_RESULT([no])
-	HAVE_SYSINFO=])
-GIT_CONF_SUBST([HAVE_SYSINFO])
-
 #
 # Define HAVE_CLOCK_GETTIME=YesPlease if clock_gettime is available.
 GIT_CHECK_FUNC(clock_gettime,
@@ -1213,6 +1187,41 @@ AC_COMPILE_IFELSE([BSD_SYSCTL_SRC],
 	HAVE_BSD_SYSCTL=])
 GIT_CONF_SUBST([HAVE_BSD_SYSCTL])
 
+#
+# Define HAVE_SYSINFO=YesPlease if sysinfo is available.
+#
+
+HAVE_SYSINFO=
+# on a *BSD system, sysctl() takes precedence over the
+# sysinfo() compatibility library (if installed).
+
+if test -z "$HAVE_BSD_SYSCTL"; then
+
+  AC_DEFUN([HAVE_SYSINFO_SRC], [
+  AC_LANG_PROGRAM([[
+  #include <stdint.h>
+  #include <sys/sysinfo.h>
+  ]], [[
+  struct sysinfo si;
+  uint64_t t = 0;
+  if (!sysinfo(&si)) {
+	t = si.totalram;
+	if (si.mem_unit > 1)
+		t *= (uint64_t)si.mem_unit;
+  }
+  return t;
+  ]])])
+
+  AC_MSG_CHECKING([for sysinfo])
+  AC_COMPILE_IFELSE([HAVE_SYSINFO_SRC],
+	[AC_MSG_RESULT([yes])
+	HAVE_SYSINFO=YesPlease],
+	[AC_MSG_RESULT([no])
+	HAVE_SYSINFO=])
+  GIT_CONF_SUBST([HAVE_SYSINFO])
+
+fi
+
 ## Other checks.
 # Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
 # Enable it on Windows.  By default, symrefs are still used.

meson.build

@@ -1331,10 +1331,6 @@ if host_machine.system() != 'windows'
   endif
 endif
 
-if compiler.has_member('struct sysinfo', 'totalram', prefix: '#include <sys/sysinfo.h>')
-  libgit_c_args += '-DHAVE_SYSINFO'
-endif
-
 if compiler.has_member('struct stat', 'st_mtimespec.tv_nsec', prefix: '#include <sys/stat.h>')
   libgit_c_args += '-DUSE_ST_TIMESPEC'
 elif not compiler.has_member('struct stat', 'st_mtim.tv_nsec', prefix: '#include <sys/stat.h>')
@@ -1438,6 +1434,12 @@ if compiler.has_header('sys/sysctl.h')
   endif
 endif
 
+if not has_bsd_sysctl
+  if compiler.has_member('struct sysinfo', 'totalram', prefix: '#include <sys/sysinfo.h>')
+    libgit_c_args += '-DHAVE_SYSINFO'
+  endif
+endif
+
 if not meson.is_cross_build() and compiler.run('''
   #include <stdio.h>