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Check for strnlen declaration to fix Solaris 10 build

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binutils currently fails to compile on Solaris 10:

/vol/src/gnu/binutils/hg/binutils-2.37-branch/git/bfd/opncls.c: In function 'bfd_get_debug_link_info_1':
/vol/src/gnu/binutils/hg/binutils-2.37-branch/git/bfd/opncls.c:1231:16: error: implicit declaration of function 'strnlen' [-Werror=implicit-function-declaration]
 1231 |	  crc_offset = strnlen (name, size) + 1;
      |		       ^~~~~~~
/vol/src/gnu/binutils/hg/binutils-2.37-branch/git/bfd/opncls.c:1231:16: error: incompatible implicit declaration of built-in function 'strnlen' [-Werror]
/vol/src/gnu/binutils/hg/binutils-2.37-branch/git/bfd/opncls.c: In function 'bfd_get_alt_debug_link_info':
/vol/src/gnu/binutils/hg/binutils-2.37-branch/git/bfd/opncls.c:1319:20: error: incompatible implicit declaration of built-in function 'strnlen' [-Werror]
 1319 |	  buildid_offset = strnlen (name, size) + 1;
      |			   ^~~~~~~

and in a couple of other places.  The platform lacks strnlen, and while
libiberty.h can provide a fallback declaration, the necessary configure
test isn't run.

Fixed with the following patch.  Tested on i386-pc-solaris2.10.

2021-07-06  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	bfd:
	* configure.ac: Check for strnlen declaration.
	* configure, config.in: Regenerate.

	binutils:
	* configure.ac: Check for strnlen declaration.
	* configure, config.in: Regenerate.
This commit is contained in:
Rainer Orth
2021-07-07 13:44:31 +02:00
parent ffa5352c0c
commit b737d3047c
8 changed files with 40 additions and 2 deletions
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2
binutils/configure.ac
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@@ -265,7 +265,7 @@ if test $bu_cv_header_utime_h = yes; then
AC_DEFINE(HAVE_GOOD_UTIME_H, 1, [Does <utime.h> define struct utimbuf?])
fi
AC_CHECK_DECLS([asprintf, environ, getc_unlocked, sbrk, stpcpy])
AC_CHECK_DECLS([asprintf, environ, getc_unlocked, sbrk, stpcpy, strnlen])
# Link in zlib if we can. This allows us to read compressed debug
# sections. This is used only by readelf.c (objdump uses bfd for