Dump on startup linked and loaded lib versions.

For now only zlib supported.
Also detect zlib by pkgconfig in configure.

8 files changed, 74 insertions, 7 deletions

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index f67fb94b3..4432d86e9 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -853,6 +853,8 @@ SET(SRCS
     utils/cpu.h
     utils/delete2.h
     utils/dtor.h
+    utils/dumplibs.cpp
+    utils/dumplibs.h
     utils/env.cpp
     utils/env.h
     utils/files.cpp
diff --git a/src/Makefile.am b/src/Makefile.am
index a1726b768..d3c664606 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -499,6 +499,8 @@ SRC += events/actionevent.h \
 	      utils/cpu.h \
 	      utils/delete2.h \
 	      utils/dtor.h \
+	      utils/dumplibs.cpp \
+	      utils/dumplibs.h \
 	      utils/env.cpp \
 	      utils/env.h \
 	      utils/files.cpp \
diff --git a/src/client.cpp b/src/client.cpp
index be9143062..344d5d7a4 100644
--- a/src/client.cpp
+++ b/src/client.cpp
@@ -134,6 +134,7 @@
 
 #include "utils/cpu.h"
 #include "utils/delete2.h"
+#include "utils/dumplibs.h"
 #include "utils/env.h"
 #include "utils/fuzzer.h"
 #include "utils/gettext.h"
@@ -351,6 +352,7 @@ void Client::gameInit()
     Dirs::initScreenshotDir();
 
     updateEnv();
+    dumpLibs();
 
     // Initialize SDL
     logger->log1("Initializing SDL...");
diff --git a/src/localconsts.h b/src/localconsts.h
index d5bd0ebc1..08623b2b5 100644
--- a/src/localconsts.h
+++ b/src/localconsts.h
@@ -87,8 +87,6 @@
 
 #endif  // GCC_VERSION < 40900
 #endif  // GCC_VERSION < 40700
-#undef Z_NULL
-#define Z_NULL nullptr
 #define M_TCPOK
 #define A_DELETE(func) func = delete
 #define A_DELETE_COPY(name) name(const name &) = delete; \
diff --git a/src/net/download.cpp b/src/net/download.cpp
index 7d7869001..ad66fa121 100644
--- a/src/net/download.cpp
+++ b/src/net/download.cpp
@@ -143,7 +143,7 @@ unsigned long Download::fadler32(FILE *const file)
     // Calculate Adler-32 checksum
     char *const buffer = new char[CAST_SIZE(fileSize)];
     const uInt read = static_cast<uInt>(fread(buffer, 1, fileSize, file));
-    unsigned long adler = adler32(0L, Z_NULL, 0);
+    unsigned long adler = adler32(0L, nullptr, 0);
     adler = adler32(static_cast<uInt>(adler),
         reinterpret_cast<Bytef*>(buffer), read);
     delete [] buffer;
@@ -153,7 +153,7 @@ unsigned long Download::fadler32(FILE *const file)
 unsigned long Download::adlerBuffer(const char *const buffer, int size)
 {
     FUNC_BLOCK("Download::adlerBuffer", 1)
-    unsigned long adler = adler32(0L, Z_NULL, 0);
+    unsigned long adler = adler32(0L, nullptr, 0);
     return adler32(static_cast<uInt>(adler),
         reinterpret_cast<const Bytef*>(buffer), size);
 }
diff --git a/src/resources/mapreader.cpp b/src/resources/mapreader.cpp
index 9156f334d..cfce7c397 100644
--- a/src/resources/mapreader.cpp
+++ b/src/resources/mapreader.cpp
@@ -128,9 +128,9 @@ int inflateMemory(unsigned char *restrict const in,
     out = static_cast<unsigned char*>(calloc(bufferSize, 1));
 
     z_stream strm;
-    strm.zalloc = Z_NULL;
-    strm.zfree = Z_NULL;
-    strm.opaque = Z_NULL;
+    strm.zalloc = nullptr;
+    strm.zfree = nullptr;
+    strm.opaque = nullptr;
     strm.next_in = in;
     strm.avail_in = inLength;
     strm.next_out = out;
diff --git a/src/utils/dumplibs.cpp b/src/utils/dumplibs.cpp
new file mode 100644
index 000000000..6a6e378ba
--- /dev/null
+++ b/src/utils/dumplibs.cpp
@@ -0,0 +1,35 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2017  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus Client.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "utils/dumplibs.h"
+
+#include "logger.h"
+
+#include <zlib.h>
+
+#include "debug.h"
+
+void dumpLibs()
+{
+    logger->log("Compiled with zLib: %s", ZLIB_VERSION);
+#if ZLIB_VERNUM >= 0x1020
+    logger->log("Linked with zLib: %s", zlibVersion());
+#endif  // ZLIB_VERNUM >= 0x1020
+}
diff --git a/src/utils/dumplibs.h b/src/utils/dumplibs.h
new file mode 100644
index 000000000..1013026f1
--- /dev/null
+++ b/src/utils/dumplibs.h
@@ -0,0 +1,28 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2017  The ManaPlus Developers
+ *
+ *  This file is part of The ManaPlus Client.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License
+ *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef UTILS_DUMPLIBS_H
+#define UTILS_DUMPLIBS_H
+
+#include "localconsts.h"
+
+void dumpLibs();
+
+#endif  // UTILS_DUMPLIBS_H