diff --git a/Makefile b/Makefile
index 41caa048..0aa516a9 100644
--- a/Makefile
+++ b/Makefile
@@ -10,11 +10,12 @@ include arch.mk
 
 ifeq ($(ARCH), lin)
 	SOURCES += ext/osdialog/osdialog_gtk2.c
-	CFLAGS += $(shell pkg-config --cflags gtk+-2.0)
+	CFLAGS += $(shell pkg-config --cflags gtk+-2.0 gl glew glfw3 jansson libzip portaudio-2.0 samplerate)
+	CXXFLAGS += $(shell pkg-config --cflags gl glew glfw3 jansson libzip portaudio-2.0 samplerate)
 	LDFLAGS += -rdynamic \
-		-lpthread -lGL -ldl \
-		$(shell pkg-config --libs gtk+-2.0) \
-		-Ldep/lib -lGLEW -lglfw -ljansson -lsamplerate -lcurl -lzip -lportaudio -lportmidi
+		-lpthread -ldl \
+		$(shell pkg-config --libs gtk+-2.0 gl glew glfw3 jansson libzip portaudio-2.0 samplerate) \
+		-Ldep/lib -lcurl -lportmidi
 	TARGET = Rack
 endif
 
diff --git a/include/math.hpp b/include/math.hpp
index 134546d3..3b50e5e0 100644
--- a/include/math.hpp
+++ b/include/math.hpp
@@ -1,6 +1,6 @@
 #pragma once
 
-#include <math.h>
+#include <cmath>
 
 
 namespace rack {
@@ -182,7 +182,7 @@ struct Vec {
 		return Vec(roundf(x), roundf(y));
 	}
 	bool isFinite() {
-		return isfinite(x) && isfinite(y);
+		return std::isfinite(x) && std::isfinite(y);
 	}
 	bool isZero() {
 		return x == 0.0 && y == 0.0;
diff --git a/src/gui.cpp b/src/gui.cpp
index e7d9e3b0..07b72432 100644
--- a/src/gui.cpp
+++ b/src/gui.cpp
@@ -22,6 +22,10 @@
 	#include <ApplicationServices/ApplicationServices.h>
 #endif
 
+#if GLFW_VERSION_MINOR == 0 && GLFW_VERSION_REVISION <= 4
+#define OLD_GLFW_VERSION
+#endif
+
 namespace rack {
 
 static GLFWwindow *window = NULL;
@@ -235,7 +239,9 @@ void guiInit() {
 	// glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 2);
 	// glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
 	// glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
+#ifndef OLD_GLFW_VERSION
 	glfwWindowHint(GLFW_MAXIMIZED, GLFW_TRUE);
+#endif
 	std::string title = gApplicationName + " " + gApplicationVersion;
 	window = glfwCreateWindow(1000, 750, title.c_str(), NULL, NULL);
 	assert(window);
@@ -262,7 +268,9 @@ void guiInit() {
 	// GLEW generates GL error because it calls glGetString(GL_EXTENSIONS), we'll consume it here.
 	glGetError();
 
+#ifndef OLD_GLFW_VERSION
 	glfwSetWindowSizeLimits(window, 640, 480, GLFW_DONT_CARE, GLFW_DONT_CARE);
+#endif
 
 	// Set up NanoVG
 	gVg = nvgCreateGL2(NVG_ANTIALIAS);
diff --git a/src/plugin.cpp b/src/plugin.cpp
index 5da33e38..46f61f99 100644
--- a/src/plugin.cpp
+++ b/src/plugin.cpp
@@ -23,6 +23,11 @@
 #include "plugin.hpp"
 #include "util/request.hpp"
 
+#if LIBZIP_VERSION_MAJOR == 0 && LIBZIP_VERSION_MINOR <= 10
+typedef zip zip_t;
+typedef zip_file zip_file_t;
+typedef struct zip_stat zip_stat_t;
+#endif
 
 namespace rack {
 
@@ -131,7 +136,7 @@ static void extractZip(const char *filename, const char *dir) {
 	if (!za) return;
 	if (err) goto cleanup;
 
-	for (int i = 0; i < zip_get_num_entries(za, 0); i++) {
+	for (zip_uint64_t i = 0; i < zip_get_num_entries(za, 0); i++) {
 		zip_stat_t zs;
 		err = zip_stat_index(za, i, 0, &zs);
 		if (err) goto cleanup;