tweak various things for newer compilers

Makefile

@@ -34,7 +34,8 @@ VST_SRC = ${VST_CPP:%=$(VST_CPP_DIR)/%}
 VST_OBJ = ${VST_CPP:%.cpp=$(BIN)/%.o}
 VST_DEF = $(VST_SDK_DIR)/public.sdk/samples/vst2.x/win/vstplug.def
 
-GENERAL_FLAGS = -Wall -Winline -Wno-unused-function -Wno-sign-compare -I . -I include
+GENERAL_FLAGS = -Wall -Winline -Wno-unused-function -Wno-sign-compare
+GENERAL_FLAGS += -I . -I include
 ALL_CXXFLAGS = $(GENERAL_FLAGS) -std=gnu++11 $(CXXFLAGS)
 ALL_LDFLAGS = -lm $(LDFLAGS)
 

README.md

@@ -33,25 +33,18 @@ required to build crap.
 
 [eigen]: http://eigen.tuxfamily.org/
 
-### clang is strongly recommended
+you may need to add `-fabi-version=6` to CXXFLAGS if you use g++.
-
-gcc can potentially produce significantly slower code,
-and odds are that your version is horribly outdated anyway.
-
-*Debian/Ubuntu users:* your stable version of g++ can't even build this.
-just `apt-get install clang-3.6` and export `CXX=clang++-3.6` when building.
-
-If you really have to use g++,
-you may need to add `-fabi-version=6` to CXXFLAGS.
 
 ### general building
 
-`make linux` or `make windows` (works well with [mxe])
+`make linux` or `make windows`
+(works well with [mxe][mxe] and [msys2 mingw64][msys2])
 [mxe]: //mxe.cc
+[msys2]: //msys2.github.io
 
 `make linux-arm` requires a CPU with a NEON unit
 
-remember to export `VST_SDK_DIR` to the path of your `vstsdk2.4/`
+**remember to export** `VST_SDK_DIR` **to the path of your** `vstsdk2.4/`
 
 other targets:
 * all: no hand-holding.

include/util.hpp

@@ -2,7 +2,11 @@
 #include <math.h>
 #include <stdint.h>
 
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wmisleading-indentation"
+#pragma GCC diagnostic ignored "-Wdeprecated-declarations"
 #include <Eigen/Core>
+#pragma GCC diagnostic pop
 
 struct Aligned {
 	EIGEN_MAKE_ALIGNED_OPERATOR_NEW