[sql] Rewrite sqlite patching "system".

third_party/sqlite/patches/0001-test-SQLite-tests-compiling-on-Linux.patch

+From 6125c2ecdd580204a0dddd543f1609818e06a73b Mon Sep 17 00:00:00 2001
+From: Scott Hess <shess@chromium.org>
+Date: Fri, 16 Jan 2015 10:24:30 -0800
+Subject: [PATCH 01/23] [test] SQLite tests compiling on Linux.
+
+---
+ third_party/sqlite/src/Makefile.linux-gcc | 42 ++++++++++++++++++++++---------
+ 1 file changed, 30 insertions(+), 12 deletions(-)
+
+diff --git a/third_party/sqlite/src/Makefile.linux-gcc b/third_party/sqlite/src/Makefile.linux-gcc
+index 1c9f24f..6d67ba7 100644
+--- a/third_party/sqlite/src/Makefile.linux-gcc
++++ b/third_party/sqlite/src/Makefile.linux-gcc
+@@ -14,7 +14,7 @@
+ #### The toplevel directory of the source tree.  This is the directory
+ #    that contains this "Makefile.in" and the "configure.in" script.
+ #
+-TOP = ../sqlite
++TOP = ..
+ 
+ #### C Compiler and options for use in building executables that
+ #    will run on the platform that is doing the build.
+@@ -32,19 +32,19 @@ USLEEP = -DHAVE_USLEEP=1
+ #    multi-threaded program, then define the following macro
+ #    appropriately:
+ #
+-#THREADSAFE = -DTHREADSAFE=1
+-THREADSAFE = -DTHREADSAFE=0
++THREADSAFE = -DTHREADSAFE=1
++#THREADSAFE = -DTHREADSAFE=0
+ 
+ #### Specify any extra linker options needed to make the library
+ #    thread safe
+ #
+-#THREADLIB = -lpthread
+-THREADLIB = 
++THREADLIB = -lpthread
++#THREADLIB = 
+ 
+ #### Specify any extra libraries needed to access required functions.
+ #
+ #TLIBS = -lrt    # fdatasync on Solaris 8
+-TLIBS = 
++TLIBS = -ldl
+ 
+ #### Leave SQLITE_DEBUG undefined for maximum speed.  Use SQLITE_DEBUG=1
+ #    to check for memory leaks.  Use SQLITE_DEBUG=2 to print a log of all
+@@ -58,7 +58,25 @@ TLIBS =
+ #OPTS = -DSQLITE_DEBUG=1
+ #OPTS = 
+ OPTS = -DNDEBUG=1
+-OPTS += -DHAVE_FDATASYNC=1
++#OPTS += -DHAVE_FDATASYNC=1
++
++# These flags match those for SQLITE_CFLAGS in config.mk.
++
++OPTS += -DSQLITE_CORE
++OPTS += -DSQLITE_DEFAULT_FILE_PERMISSIONS=0600
++OPTS += -DHAVE_USLEEP=1
++
++# Additional SQLite tests.
++OPTS += -DSQLITE_MEMDEBUG=1
++
++# Don't include these ones, they break the SQLite tests.
++#  -DSQLITE_OMIT_ATTACH=1 \
++#  -DSQLITE_OMIT_LOAD_EXTENSION=1 \
++#  -DSQLITE_OMIT_VACUUM=1 \
++#  -DSQLITE_TRANSACTION_DEFAULT_IMMEDIATE=1 \
++
++# TODO(shess) I can't see why I need this setting.
++OPTS += -DOS_UNIX=1
+ 
+ #### The suffix to add to executable files.  ".exe" for windows.
+ #    Nothing for unix.
+@@ -70,7 +88,7 @@ EXE =
+ #    will run on the target platform.  This is usually the same
+ #    as BCC, unless you are cross-compiling.
+ #
+-TCC = gcc -O6
++TCC = gcc -Os
+ #TCC = gcc -g -O0 -Wall
+ #TCC = gcc -g -O0 -Wall -fprofile-arcs -ftest-coverage
+ #TCC = /opt/mingw/bin/i386-mingw32-gcc -O6
+@@ -91,16 +109,16 @@ SHPREFIX = lib
+ 
+ #### Extra compiler options needed for programs that use the TCL library.
+ #
+-#TCL_FLAGS =
++TCL_FLAGS = -I/usr/include/tcl8.5
+ #TCL_FLAGS = -DSTATIC_BUILD=1
+-TCL_FLAGS = -I/home/drh/tcltk/8.5linux
++#TCL_FLAGS = -I/home/drh/tcltk/8.5linux
+ #TCL_FLAGS = -I/home/drh/tcltk/8.5win -DSTATIC_BUILD=1
+ #TCL_FLAGS = -I/home/drh/tcltk/8.3hpux
+ 
+ #### Linker options needed to link against the TCL library.
+ #
+-#LIBTCL = -ltcl -lm -ldl
+-LIBTCL = /home/drh/tcltk/8.5linux/libtcl8.5g.a -lm -ldl
++LIBTCL = -ltcl8.5 -lm -ldl
++#LIBTCL = /home/drh/tcltk/8.5linux/libtcl8.5g.a -lm -ldl
+ #LIBTCL = /home/drh/tcltk/8.5win/libtcl85s.a -lmsvcrt
+ #LIBTCL = /home/drh/tcltk/8.3hpux/libtcl8.3.a -ldld -lm -lc
+ 
+-- 
+2.2.1
+