From: Dan Kegel <dank@kegel.com>
Date: Thu, 11 Jun 2020 01:41:32 +0000 (-0700)
Subject: cmake: generate same zconf.h as configure
X-Git-Tag: 1.9.9-b1~204
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=280f379629235921c5782480945236f1d7c8fc78;p=thirdparty%2Fzlib-ng.git

cmake: generate same zconf.h as configure

Also make comment in zconf.h less configure-specific
---

diff --git a/CMakeLists.txt b/CMakeLists.txt
index eddf4771a..b759d9add 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -311,10 +311,11 @@ endif()
 # Check for stndard/system includes
 #
 check_include_file(sys/types.h HAVE_SYS_TYPES_H)
+check_include_file(stdarg.h    HAVE_STDARG_H)
 check_include_file(stdint.h    HAVE_STDINT_H)
 check_include_file(stddef.h    HAVE_STDDEF_H)
 check_include_file(sys/sdt.h   HAVE_SYS_SDT_H)
-check_include_file(unistd.h    Z_HAVE_UNISTD_H)
+check_include_file(unistd.h    HAVE_UNISTD_H)
 
 #
 # Check to see if we have large file support
@@ -781,15 +782,13 @@ macro(generate_cmakein input output)
     file(REMOVE ${output})
     file(STRINGS ${input} _lines)
     foreach(_line IN LISTS _lines)
-        file(APPEND ${output} "${_line}\n")
-
-        if(_line STREQUAL "#define ZCONF_H" OR _line STREQUAL "#define ZCONFNG_H")
-            file(APPEND ${output} "#cmakedefine Z_HAVE_UNISTD_H\n")
-            if(NOT HAVE_PTRDIFF_T)
-              file(APPEND ${output} "#cmakedefine NEED_PTRDIFF_T\n")
-              file(APPEND ${output} "#cmakedefine PTRDIFF_TYPE ${PTRDIFF_TYPE}\n")
-            endif()
+        string(REGEX REPLACE "#ifdef HAVE_UNISTD_H.*" "@ZCONF_UNISTD_LINE@" _line "${_line}")
+        string(REGEX REPLACE "#ifdef HAVE_STDARG_H.*" "@ZCONF_STDARG_LINE@" _line "${_line}")
+        string(REGEX REPLACE "#ifdef NEED_PTRDIFF_T.*" "@ZCONF_PTRDIFF_LINE@" _line "${_line}")
+        if(NEED_PTRDIFF_T)
+            string(REGEX REPLACE "typedef PTRDIFF_TYPE" "typedef @PTRDIFF_TYPE@" _line "${_line}")
         endif()
+        file(APPEND ${output} "${_line}\n")
     endforeach()
 endmacro(generate_cmakein)
 
@@ -975,6 +974,22 @@ if(NOT DEFINED BUILD_SHARED_LIBS OR BUILD_SHARED_LIBS)
     endif()
 endif()
 
+if(HAVE_STDARG_H)
+  SET(ZCONF_STDARG_LINE "#if 1    /* was set to #if 1 by configure/cmake/etc */")
+else()
+  SET(ZCONF_STDARG_LINE "#ifdef HAVE_STDARG_H    /* may be set to #if 1 by configure/cmake/etc */")
+endif()
+if(HAVE_UNISTD_H)
+  SET(ZCONF_UNISTD_LINE "#if 1    /* was set to #if 1 by configure/cmake/etc */")
+else()
+  SET(ZCONF_UNISTD_LINE "#ifdef HAVE_UNISTD_H    /* may be set to #if 1 by configure/cmake/etc */")
+endif()
+if(NEED_PTRDIFF_T)
+    SET(ZCONF_PTRDIFF_LINE "#if 1    /* was set to #if 1 by configure/cmake/etc */")
+else()
+    SET(ZCONF_PTRDIFF_LINE "#ifdef NEED_PTRDIFF_T    /* may be set to #if 1 by configure/cmake/etc */")
+endif()
+
 set(ZLIB_PC ${CMAKE_CURRENT_BINARY_DIR}/zlib${SUFFIX}.pc)
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/zlib.pc.cmakein
     ${ZLIB_PC} @ONLY)
diff --git a/zconf-ng.h.in b/zconf-ng.h.in
index 032c53c01..d2af3d596 100644
--- a/zconf-ng.h.in
+++ b/zconf-ng.h.in
@@ -98,11 +98,11 @@ typedef void const *voidpc;
 typedef void       *voidpf;
 typedef void       *voidp;
 
-#ifdef HAVE_UNISTD_H    /* may be set to #if 1 by ./configure */
+#ifdef HAVE_UNISTD_H    /* may be set to #if 1 by configure/cmake/etc */
 #  define Z_HAVE_UNISTD_H
 #endif
 
-#ifdef NEED_PTRDIFF_T    /* may be set to #if 1 by ./configure */
+#ifdef NEED_PTRDIFF_T    /* may be set to #if 1 by configure/cmake/etc */
 typedef PTRDIFF_TYPE ptrdiff_t;
 #endif
 
diff --git a/zconf.h.in b/zconf.h.in
index 15ac26af4..2501330e2 100644
--- a/zconf.h.in
+++ b/zconf.h.in
@@ -102,11 +102,11 @@ typedef void const *voidpc;
 typedef void       *voidpf;
 typedef void       *voidp;
 
-#ifdef HAVE_UNISTD_H    /* may be set to #if 1 by ./configure */
+#ifdef HAVE_UNISTD_H    /* may be set to #if 1 by configure/cmake/etc */
 #  define Z_HAVE_UNISTD_H
 #endif
 
-#ifdef NEED_PTRDIFF_T    /* may be set to #if 1 by ./configure */
+#ifdef NEED_PTRDIFF_T    /* may be set to #if 1 by configure/cmake/etc */
 typedef PTRDIFF_TYPE ptrdiff_t;
 #endif