Merge branch 'bc/solaris'

* bc/solaris:
  configure: test whether -lresolv is needed
  Makefile: insert SANE_TOOL_PATH to PATH before /bin or /usr/bin
  git-compat-util.h: avoid using c99 flex array feature with Sun compiler 5.8
  Makefile: add section for SunOS 5.7
  Makefile: introduce SANE_TOOL_PATH for prepending required elements to PATH
  Makefile: define __sun__ on SunOS
  git-compat-util.h: tweak the way _XOPEN_SOURCE is set on Solaris
  On Solaris choose the OLD_ICONV iconv() declaration based on the UNIX spec
  Makefile: add NEEDS_RESOLV to optionally add -lresolv to compile arguments
  Makefile: use /usr/ucb/install on SunOS platforms rather than ginstall

Conflicts:
	Makefile

diff --cc Makefile
Simple merge

diff --cc config.mak.in
index e8d96e88b92a2305e50eb1adcff7f9d0f3310996,d0cd1558117bd944f63250f3f09d366d8875e62f..dd6045131880111bb09306cb3e48330a0e5acdac
--- 1/config.mak.in
--- 2/config.mak.in
+++ b/config.mak.in
@@@ -30,9 -30,9 +30,10 @@@ NEEDS_SSL_WITH_CRYPTO=@NEEDS_SSL_WITH_C
  NO_OPENSSL=@NO_OPENSSL@
  NO_CURL=@NO_CURL@
  NO_EXPAT=@NO_EXPAT@
 +NO_LIBGEN_H=@NO_LIBGEN_H@
  NEEDS_LIBICONV=@NEEDS_LIBICONV@
  NEEDS_SOCKET=@NEEDS_SOCKET@
+ NEEDS_RESOLV=@NEEDS_RESOLV@
  NO_SYS_SELECT_H=@NO_SYS_SELECT_H@
  NO_D_INO_IN_DIRENT=@NO_D_INO_IN_DIRENT@
  NO_D_TYPE_IN_DIRENT=@NO_D_TYPE_IN_DIRENT@

diff --cc configure.ac
Simple merge

diff --cc git-compat-util.h
index f25f7f1a9eda48477485c2406402a0a06fd9c8e3,48d99fab863eb2462a266cd1bac31d88ffd59f8d..919b7f1ade9cab3c4ba907f9506e3cb518fb9e7f
--- 1/git-compat-util.h
--- 2/git-compat-util.h
+++ b/git-compat-util.h
@@@ -39,12 -39,23 +39,25 @@@
  /* Approximation of the length of the decimal representation of this type. */
  #define decimal_length(x)     ((int)(sizeof(x) * 2.56 + 0.5) + 1)
  
- #if !defined(__APPLE__) && !defined(__FreeBSD__)  && !defined(__USLC__) && !defined(_M_UNIX)
+ #if defined(__sun__)
+  /*
+   * On Solaris, when _XOPEN_EXTENDED is set, its header file
+   * forces the programs to be XPG4v2, defeating any _XOPEN_SOURCE
+   * setting to say we are XPG5 or XPG6.  Also on Solaris,
+   * XPG6 programs must be compiled with a c99 compiler, while
+   * non XPG6 programs must be compiled with a pre-c99 compiler.
+   */
+ # if __STDC_VERSION__ - 0 >= 199901L
+ # define _XOPEN_SOURCE 600
+ # else
+ # define _XOPEN_SOURCE 500
+ # endif
+ #elif !defined(__APPLE__) && !defined(__FreeBSD__)  && !defined(__USLC__) && !defined(_M_UNIX)
  #define _XOPEN_SOURCE 600 /* glibc2 and AIX 5.3L need 500, OpenBSD needs 600 for S_ISLNK() */
 +#ifndef __sun__
  #define _XOPEN_SOURCE_EXTENDED 1 /* AIX 5.3L needs this */
  #endif
 +#endif
  #define _ALL_SOURCE 1
  #define _GNU_SOURCE 1
  #define _BSD_SOURCE 1