[PATCH 1/4] libctf: do not use mmap on Solaris 11

[Nick Alcock]

From: Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE>

Writable mmaps and read are inconsistent with each other on Solaris 11.4,
which breaks archive writing.  Simply assert that Solaris 2.11 doesn't have
mmap, falling back to read(): the archive format is being bumped shortly, to
one with completely different writeout code, so this workaround need not
stay for long.

[nca: added commit log]

libctf/
	PR libctf/29292
	* configure.ac: Turn off mmap on Solaris 2.11.
	* configure: Regenerated.
---
 libctf/configure    | 8 ++++++++
 libctf/configure.ac | 8 ++++++++
 2 files changed, 16 insertions(+)

diff --git a/libctf/configure b/libctf/configure
index 7466d56a18b..4c244da0100 100755
--- a/libctf/configure
+++ b/libctf/configure
@@ -15966,6 +15966,14 @@ ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
 
 
+case "${host}" in
+  # PR libctf/29292
+  # libctf's use of mmap doesn't work on Solaris 11.4, so disable it.
+  *-*-solaris2.11*)
+    ac_cv_func_mmap_fixed_mapped=no
+  ;;
+esac
+
 
 
 
diff --git a/libctf/configure.ac b/libctf/configure.ac
index fbd8ec12a14..dbe311c5af3 100644
--- a/libctf/configure.ac
+++ b/libctf/configure.ac
@@ -65,6 +65,14 @@ AM_MAINTAINER_MODE
 AM_INSTALL_LIBBFD
 ACX_PROG_CC_WARNING_OPTS([-Wall], [ac_libctf_warn_cflags])
 
+case "${host}" in
+  # PR libctf/29292
+  # libctf's use of mmap doesn't work on Solaris 11.4, so disable it.
+  *-*-solaris2.11*)
+    ac_cv_func_mmap_fixed_mapped=no
+  ;;
+esac
+
 GCC_AC_FUNC_MMAP
 # Needed for BFD capability checks.
 AC_SEARCH_LIBS(dlsym, dl)
-- 
2.48.1.283.g18c60a128c