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* ext/dbm/extconf.rb: refine variable names.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@34702 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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akr 2012-02-20 10:16:25 +00:00
parent aa27e42fd3
commit f8015c23c4
2 changed files with 18 additions and 14 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
Mon Feb 20 19:15:57 2012 Tanaka Akira <akr@fsij.org>
* ext/dbm/extconf.rb: refine variable names.
Mon Feb 20 15:50:33 2012 Nobuyoshi Nakada <nobu@ruby-lang.org>
* configure.in: check if -fstack-protector is really available.

28
ext/dbm/extconf.rb
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@ -150,30 +150,30 @@ def headers.db_check2(db, hdr)
# Berkeley DB's ndbm.h (since 1.85 at least) includes db.h and
# it defines _DB_H_.
have_db_header_macro = have_macro('_DB_H_', hdr, hsearch)
have_db_header = have_macro('_DB_H_', hdr, hsearch)
# Old GDBM's ndbm.h, until 1.8.3, defines dbm_clearerr as a macro which
# expands to no tokens.
have_gdbm_header_macro1 = have_empty_macro_dbm_clearerr(hdr, hsearch)
have_gdbm_header1 = have_empty_macro_dbm_clearerr(hdr, hsearch)
# Recent GDBM's ndbm.h, since 1.9, includes gdbm.h and it defines _GDBM_H_.
# ndbm compatibility layer of GDBM is provided by libgdbm (until 1.8.0)
# and libgdbm_compat (since 1.8.1).
have_gdbm_header_macro2 = have_macro('_GDBM_H_', hdr, hsearch)
have_gdbm_header2 = have_macro('_GDBM_H_', hdr, hsearch)
# 4.3BSD's ndbm.h defines _DBM_IOERR.
# The original ndbm is provided by libc in 4.3BSD.
have_ndbm_header_macro = have_macro('_DBM_IOERR', hdr, hsearch)
have_ndbm_header = have_macro('_DBM_IOERR', hdr, hsearch)
# GDBM provides NDBM functions in libgdbm_compat since GDBM 1.8.1.
# GDBM's ndbm.h defines _GDBM_H_ since GDBM 1.9.
# So, reject 'gdbm'. 'gdbm_compat' is required.
if have_gdbm_header_macro2 && db == 'gdbm'
# If _GDBM_H_ is defined, 'gdbm_compat' is required and reject 'gdbm'.
if have_gdbm_header2 && db == 'gdbm'
return false
end
have_gdbm_header_macro = have_gdbm_header_macro1 | have_gdbm_header_macro2
if have_gdbm_header_macro
have_gdbm_header = have_gdbm_header1 | have_gdbm_header2
if have_gdbm_header
$defs.push('-DRUBYDBM_GDBM_HEADER')
end
@ -183,15 +183,15 @@ def headers.db_check2(db, hdr)
# So, try to check header/library mismatch.
#
if hdr == 'ndbm.h' && db != 'libc'
if /\Adb\d?\z/ !~ db && have_db_header_macro
if /\Adb\d?\z/ !~ db && have_db_header
return false
end
if /\Agdbm/ !~ db && have_gdbm_header_macro
if /\Agdbm/ !~ db && have_gdbm_header
return false
end
if have_ndbm_header_macro
if have_ndbm_header
return false
end
end
@ -200,19 +200,19 @@ def headers.db_check2(db, hdr)
have_func('db_version((int *)0, (int *)0, (int *)0)', hdr, hsearch)
# GDBM
have_gdbm_variable = have_declared_libvar("gdbm_version", hdr, hsearch)
have_gdbm_version = have_declared_libvar("gdbm_version", hdr, hsearch)
# gdbm_version is available since very old version (gdbm 1.5 at least).
# However it is not declared by ndbm.h until gdbm 1.8.3.
# We can't include both ndbm.h and gdbm.h because they both define datum type.
# ndbm.h includes gdbm.h and gdbm_version is declared since gdbm 1.9.
have_gdbm_variable |= have_undeclared_libvar(["gdbm_version", "char *"], hdr, hsearch)
have_gdbm_version |= have_undeclared_libvar(["gdbm_version", "char *"], hdr, hsearch)
# QDBM
have_var("dpversion", hdr, hsearch)
# detect mismatch between GDBM header and other library.
# If GDBM header is included, GDBM library should be linked.
if have_gdbm_header_macro && !have_gdbm_variable
if have_gdbm_header && !have_gdbm_version
return false
end