diff --git a/.gitignore b/.gitignore
index 419cfea..552e6f4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,7 +1,3 @@
-profile/choice
-profile/firefox-10.0esr.tar
-profile/firefox-17.0esr.tar
-
 obj/
 flips
 flips.exe
diff --git a/Makefile b/Makefile
index fd0f23c..47e9e75 100644
--- a/Makefile
+++ b/Makefile
@@ -1,3 +1,5 @@
+#This script creates a debug-optimized binary by default. If you're on Linux, you'll get a faster binary from make.sh.
+
 CFLAGS_gtk = -DFLIPS_GTK $(GTKFLAGS) $(GTKLIBS)
 CFLAGS_windows := -DFLIPS_WINDOWS -mwindows -lgdi32 -lcomdlg32 -lcomctl32 -luser32 -lkernel32 -lshell32 -ladvapi32
 CFLAGS_cli := -DFLIPS_CLI
diff --git a/make-maintainer.sh b/make-maintainer.sh
index f9dae96..f838fbe 100755
--- a/make-maintainer.sh
+++ b/make-maintainer.sh
@@ -10,7 +10,6 @@ fi
 
 rm floating.zip
 
-profile/download.sh || exit $?
 # . rather than ./make.sh, so $FLAGS remains set
 . ./make.sh
 mv flips flips-linux
@@ -31,7 +30,8 @@ echo 'Windows (1/3)'
 rm obj/* flips.exe; wine mingw32-make TARGET=windows OPTFLAGS="$FLAGS -fprofile-generate -lgcov"
 [ -e flips.exe ] || exit
 echo 'Windows (2/3)'
-profile/profile.sh 'wine flips.exe'
+/usr/bin/time --verbose wine flips.exe --create --bps-delta         profile/firefox-10.0esr.tar profile/firefox-17.0esr.tar /dev/null
+/usr/bin/time --verbose wine flips.exe --create --bps-delta-moremem profile/firefox-10.0esr.tar profile/firefox-17.0esr.tar /dev/null
 echo 'Windows (3/3)'
 rm flips.exe; wine mingw32-make TARGET=windows OPTFLAGS="$FLAGS -fprofile-use"
 
diff --git a/make.bat b/make.bat
deleted file mode 100644
index f6e8fa0..0000000
--- a/make.bat
+++ /dev/null
@@ -1,56 +0,0 @@
-::This script creates a heavily optimized binary. For debugging, you're better off using 'mingw32-make'.
-
-::Feel free to point this elsewhere.
-call "C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\bin\vcvars32.bat"
-::call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin\vcvars32.bat"
-::call "C:\Program Files (x86)\Microsoft Visual Studio 9.0\VC\bin\vcvars64.bat"
-
-goto q
-:h
-pause
-:q
-cls
-del flips.exe
-if exist flips.exe goto h
-::/c - don't link
-::/Oy - omit frame pointer
-::/Oi - use intrinsics
-::/Os - smaller code
-::/Ox - all optimizations
-::/EHs-c- - no exceptions
-::/Gz - use stdcall
-::/D_CRT_bluh - shut the fuck up about strcpy
-::/WX - enable warnings
-::/wd4700 - uninitialized variable, I know what I'm doing
-::/nologo - I know your version, shut up
-::/TP - force C++ because void foo(int bar = 0); is syntax error in C
-::/MT - use static msvcrt
-::/GL - LTCG
-::/openmp - enable OpenMP (adds an extra DLL, so let's not)
-cl /c /Oy /Oi /Os /Ox /EHs-c- /Gz /D_CRT_SECURE_NO_WARNINGS /WX /wd4700 /nologo /TP /MT /GL /Imsvc ^
-   /DUSE_DIVSUFSORT /Ilibdivsufsort-2.0.1\include /DHAVE_CONFIG_H libdivsufsort-2.0.1\lib\*.c ^
-   *.c *.cpp
-::rc doesn't have a /nologo, just let it spam
-rc flips.rc
-
-link /LTCG /nologo *.obj /subsystem:windows flips.res user32.lib gdi32.lib comctl32.lib shell32.lib comdlg32.lib advapi32.lib /out:flips.exe
-
-::FOR %%G IN (2dland-dec2013,smwcp,nsmw-tll,senate13,kamek) DO (
-::FOR %%G IN (2dland-dec2013) DO (
-::flips --create --ips profile/smw.smc profile/%%G.smc profile/tmp
-::flips --apply  --ips profile/tmp profile/smw.smc NUL.smc
-
-::flips --create --bps-linear profile/smw.smc profile/%%G.smc profile/tmp
-::flips --apply  --bps-linear profile/tmp profile/smw.smc NUL.smc
-
-::flips --create --bps-delta profile/smw.smc profile/%%G.smc profile/tmp
-::flips --apply  --bps-delta profile/tmp profile/smw.smc NUL.smc
-::)
-::del profile\tmp
-
-::link /nologo /ltcg:pgoptimize *.obj /subsystem:windows flips.res user32.lib gdi32.lib comctl32.lib shell32.lib comdlg32.lib advapi32.lib /out:flips.exe
-
-del *.obj flips.res *.pgc *.pgd
-goto h
-
-::kernel32.lib shell32.lib user32.lib gdi32.lib comctl32.lib comdlg32.lib dinput8.lib
diff --git a/make.sh b/make.sh
index 2cf88d3..a92fe4f 100755
--- a/make.sh
+++ b/make.sh
@@ -1,44 +1,33 @@
 #!/bin/sh
 
-#This script creates a heavily optimized binary. For debugging, you're better off using 'make'.
+#This script creates a heavily optimized Linux binary. For debugging or Windows, you're better off using the Makefile directly.
 
-FLAGS='-Wall -Werror -O3 -s -flto -fuse-linker-plugin -fweb -fomit-frame-pointer -fmerge-all-constants -fvisibility=hidden'
+FLAGS='-Wall -Werror -O3 -flto -fuse-linker-plugin -fomit-frame-pointer -fmerge-all-constants -fvisibility=hidden'
 FLAGS=$FLAGS' -fno-exceptions -fno-unwind-tables -fno-asynchronous-unwind-tables'
 FLAGS=$FLAGS' -ffunction-sections -fdata-sections -Wl,--gc-sections -fprofile-dir=obj/'
 #Linux flags, they don't make sense on Windows
 #make-release.sh uses this
 LINFLAGS=' -Wl,-z,relro,-z,now,--as-needed,--hash-style=gnu,--relax'
 
-#if old profile data is present, download the new one instead
-#do it before checking for arguments, so --profile=no with old data existing doesn't do anything silly
-if [ -e profile/firefox-45.0esr.tar ]; then
-  rm profile/firefox-45.0esr.tar profile/firefox-52.0esr.tar
-  touch profile/firefox-10.0esr.tar
-fi
-
 PROFILE=yes
+STRIP="-s"
 
 for i in "$@"; do
 case "$i" in
-  --harden=no)
-  ;;
   --harden=yes)
     FLAGS=$FLAGS' -fstack-protector-all -Wstack-protector --param ssp-buffer-size=4 -pie -fPIE -D_FORTIFY_SOURCE=2'
     true | gcc -E - -mmitigate-rop > /dev/null 2>&1 &&
       FLAGS=$FLAGS' -mmitigate-rop'
   ;;
-  --profile=no)
-    echo n > profile/choice
-    rm profile/firefox-10.0esr.tar
-    rm profile/firefox-17.0esr.tar
-  ;;
-  --profile=no-once)
+  --profile=no|--profile=no-once)
+    # With PGO, compilation takes about 75 seconds for me, with a peak memory use of 814MB.
+    # Without PGO, it takes 2.5 seconds and 75MB RAM. However, the resulting binary is about 2% slower.
     PROFILE=no
   ;;
-  --profile=yes)
-    if [ ! -e profile/firefox-10.0esr.tar ]; then
-      profile/download.sh || exit $?
-    fi
+  --strip=no)
+    STRIP="-g"
+  ;;
+  --harden=no|--strip=yes|--profile=yes)
   ;;
   *)
   echo "Unknown argument $1; valid arguments are:"
@@ -48,38 +37,23 @@ case "$i" in
 esac
 done
 
+rm flips obj/*
 
-if [ $PROFILE = yes -a ! -e profile/choice ]; then
-  while true; do
-    #              1         2         3         4         5         6         7         8
-    #     12345678901234567890123456789012345678901234567890123456789012345678901234567890
-    echo "Do you wish to use profile-guided optimization? This will download 40MB"
-    echo "data from the internet and use 90MB disk space, and use 800MB RAM during"
-    echo "compilation. The result is typically 2% faster."
-    read -p "(y/n)" yn || exit $?
-    case $yn in
-      [Yy]*) profile/download.sh || exit $?; break;;
-      [Nn]*) echo n > profile/choice; break;;
-      *) echo "Please answer yes or no.";;
-    esac
-  done
-fi
+if [ $PROFILE = yes ]; then
 
-#if download was aborted, resume it
-if [ -e profile/firefox-10.0esr.tar ]; then
-  profile/download.sh || exit $?
-fi
-
-rm flips flips.exe obj/*
-
-if [ $PROFILE = yes -a -e profile/firefox-10.0esr.tar ]; then
 echo 'GTK+ (1/3)'
 rm obj/* flips; TARGET=gtk make OPTFLAGS="$FLAGS$LINFLAGS -fprofile-generate -lgcov" || exit $?
 [ -e flips ] || exit 1
 echo 'GTK+ (2/3)'
-profile/profile.sh ./flips
+
+# These files are downloaded and extracted from
+# https://ftp.mozilla.org/pub/firefox/releases/10.0esr/linux-x86_64/en-US/firefox-10.0esr.tar.bz2
+# https://ftp.mozilla.org/pub/firefox/releases/17.0esr/linux-x86_64/en-US/firefox-17.0esr.tar.bz2
+/usr/bin/time --verbose ./flips --create --bps-delta         profile/firefox-10.0esr.tar profile/firefox-17.0esr.tar /dev/null
+/usr/bin/time --verbose ./flips --create --bps-delta-moremem profile/firefox-10.0esr.tar profile/firefox-17.0esr.tar /dev/null
+
 echo 'GTK+ (3/3)'
-rm flips; TARGET=gtk make OPTFLAGS="$FLAGS$LINFLAGS -fprofile-use"
+rm flips; TARGET=gtk make OPTFLAGS="$FLAGS$LINFLAGS -fprofile-use" || exit $?
 else
 rm flips; TARGET=gtk make OPTFLAGS="$FLAGS$LINFLAGS" || exit $?
 fi
diff --git a/profile/download.sh b/profile/download.sh
deleted file mode 100755
index c798bcc..0000000
--- a/profile/download.sh
+++ /dev/null
@@ -1,20 +0,0 @@
-#!/bin/sh
-
-#why firefox? I need two large, freely available, mostly similar, binary files; two versions of an executable would be a good choice
-#why 10/17? older firefoxes are smaller, so profiling needs less RAM; but I also want to skip a few versions, to ensure they're
-# not too similar; and I want something chosen with a minimum of arbitrariness. The oldest ESRs satisfy those constraints.
-SRC=profile/firefox-10.0esr.tar
-DST=profile/firefox-17.0esr.tar
-SRCSIZE=39526400
-DSTSIZE=49192960
-SRCURL=https://ftp.mozilla.org/pub/firefox/releases/10.0esr/linux-x86_64/en-US/firefox-10.0esr.tar.bz2
-DSTURL=https://ftp.mozilla.org/pub/firefox/releases/17.0esr/linux-x86_64/en-US/firefox-17.0esr.tar.bz2
-
-if [ ! -f $SRC ] || [ $(wc -c <$SRC) -lt $SRCSIZE ]; then
-  wget $SRCURL -O- | bzcat > $SRC || curl $SRCURL | bzcat > $SRC || exit $?
-fi
-if [ ! -f $DST ] || [ $(wc -c <$DST) -lt $DSTSIZE ]; then
-  wget $DSTURL -O- | bzcat > $DST || curl $DSTURL | bzcat > $DST || exit $?
-fi
-
-echo y > profile/choice
diff --git a/profile/firefox-10.0esr.tar b/profile/firefox-10.0esr.tar
new file mode 100644
index 0000000..de98af2
Binary files /dev/null and b/profile/firefox-10.0esr.tar differ
diff --git a/profile/firefox-17.0esr.tar b/profile/firefox-17.0esr.tar
new file mode 100644
index 0000000..15d7e7a
Binary files /dev/null and b/profile/firefox-17.0esr.tar differ
diff --git a/profile/profile.sh b/profile/profile.sh
deleted file mode 100755
index dd57e96..0000000
--- a/profile/profile.sh
+++ /dev/null
@@ -1,10 +0,0 @@
-#!/bin/sh
-
-#profiling plus threading tends to act weirdly, disable it
-export OMP_NUM_THREADS=1
-
-SRC=profile/firefox-10.0esr.tar
-DST=profile/firefox-17.0esr.tar
-
-/usr/bin/time --verbose $1 --create --bps-delta         $SRC $DST /dev/null
-/usr/bin/time --verbose $1 --create --bps-delta-moremem $SRC $DST /dev/null