Initial commit

toolchain/musl/patches/100-add_glob_onlydir.patch

@@ -0,0 +1,11 @@
+--- a/include/glob.h
++++ b/include/glob.h
+@@ -34,6 +34,8 @@ void globfree(glob_t *);
+ #define GLOB_TILDE       0x1000
+ #define GLOB_TILDE_CHECK 0x4000
+ 
++#define GLOB_ONLYDIR	0x100
++
+ #define GLOB_NOSPACE 1
+ #define GLOB_ABORTED 2
+ #define GLOB_NOMATCH 3

toolchain/musl/patches/110-read_timezone_from_fs.patch

@@ -0,0 +1,28 @@
+--- a/src/time/__tz.c
++++ b/src/time/__tz.c
+@@ -25,6 +25,9 @@ static int r0[5], r1[5];
+ static const unsigned char *zi, *trans, *index, *types, *abbrevs, *abbrevs_end;
+ static size_t map_size;
+ 
++static const char *tzfile;
++static size_t tzfile_size;
++
+ static char old_tz_buf[32];
+ static char *old_tz = old_tz_buf;
+ static size_t old_tz_size = sizeof old_tz_buf;
+@@ -125,6 +128,15 @@ static void do_tzset()
+ 		"/usr/share/zoneinfo/\0/share/zoneinfo/\0/etc/zoneinfo/\0";
+ 
+ 	s = getenv("TZ");
++
++	/* if TZ is empty try to read it from /etc/TZ */
++	if (!s || !*s) {
++		if (tzfile)
++			__munmap((void*)tzfile, tzfile_size);
++
++		s = tzfile = (void *)__map_file("/etc/TZ", &tzfile_size);
++	}
++
+ 	if (!s) s = "/etc/localtime";
+ 	if (!*s) s = __utc;
+ 

toolchain/musl/patches/200-add_libssp_nonshared.patch

@@ -0,0 +1,53 @@
+From 7ec87fbbc3cac99b4173d082dd6195f47c9a32e7 Mon Sep 17 00:00:00 2001
+From: Steven Barth <steven@midlink.org>
+Date: Mon, 22 Jun 2015 11:01:56 +0200
+Subject: [PATCH] Add libssp_nonshared.a so GCC's is not needed
+
+Signed-off-by: Steven Barth <steven@midlink.org>
+
+--- a/Makefile
++++ b/Makefile
+@@ -66,7 +66,7 @@ CRT_LIBS = $(addprefix lib/,$(notdir $(C
+ STATIC_LIBS = lib/libc.a
+ SHARED_LIBS = lib/libc.so
+ TOOL_LIBS = lib/musl-gcc.specs
+-ALL_LIBS = $(CRT_LIBS) $(STATIC_LIBS) $(SHARED_LIBS) $(EMPTY_LIBS) $(TOOL_LIBS)
++ALL_LIBS = $(CRT_LIBS) $(STATIC_LIBS) $(SHARED_LIBS) $(EMPTY_LIBS) $(TOOL_LIBS) lib/libssp_nonshared.a
+ ALL_TOOLS = obj/musl-gcc
+ 
+ WRAPCC_GCC = gcc
+@@ -86,7 +86,7 @@ else
+ 
+ all: $(ALL_LIBS) $(ALL_TOOLS)
+ 
+-OBJ_DIRS = $(sort $(patsubst %/,%,$(dir $(ALL_LIBS) $(ALL_TOOLS) $(ALL_OBJS) $(GENH) $(GENH_INT))) obj/include)
++OBJ_DIRS = $(sort $(patsubst %/,%,$(dir $(ALL_LIBS) $(ALL_TOOLS) $(ALL_OBJS) $(GENH) $(GENH_INT))) obj/include obj/libssp_nonshared)
+ 
+ $(ALL_LIBS) $(ALL_TOOLS) $(ALL_OBJS) $(ALL_OBJS:%.o=%.lo) $(GENH) $(GENH_INT): | $(OBJ_DIRS)
+ 
+@@ -113,6 +113,8 @@ obj/crt/rcrt1.o: $(srcdir)/ldso/dlstart.
+ 
+ obj/crt/Scrt1.o obj/crt/rcrt1.o: CFLAGS_ALL += -fPIC
+ 
++obj/libssp_nonshared/__stack_chk_fail_local.o: CFLAGS_ALL += $(CFLAGS_NOSSP)
++
+ OPTIMIZE_SRCS = $(wildcard $(OPTIMIZE_GLOBS:%=$(srcdir)/src/%))
+ $(OPTIMIZE_SRCS:$(srcdir)/%.c=obj/%.o) $(OPTIMIZE_SRCS:$(srcdir)/%.c=obj/%.lo): CFLAGS += -O3
+ 
+@@ -165,6 +167,11 @@ lib/libc.a: $(AOBJS)
+ 	$(AR) rc $@ $(AOBJS)
+ 	$(RANLIB) $@
+ 
++lib/libssp_nonshared.a: obj/libssp_nonshared/__stack_chk_fail_local.o
++	rm -f $@
++	$(AR) rc $@ $<
++	$(RANLIB) $@
++
+ $(EMPTY_LIBS):
+ 	rm -f $@
+ 	$(AR) rc $@
+--- /dev/null
++++ b/libssp_nonshared/__stack_chk_fail_local.c
+@@ -0,0 +1,2 @@
++#include "atomic.h"
++void __attribute__((visibility ("hidden"))) __stack_chk_fail_local(void) { a_crash(); }

toolchain/musl/patches/300-relative.patch

@@ -0,0 +1,11 @@
+--- a/Makefile
++++ b/Makefile
+@@ -215,7 +215,7 @@ $(DESTDIR)$(includedir)/%: $(srcdir)/inc
+ 	$(INSTALL) -D -m 644 $< $@
+ 
+ $(DESTDIR)$(LDSO_PATHNAME): $(DESTDIR)$(libdir)/libc.so
+-	$(INSTALL) -D -l $(libdir)/libc.so $@ || true
++	$(INSTALL) -D -l libc.so $@ || true
+ 
+ install-libs: $(ALL_LIBS:lib/%=$(DESTDIR)$(libdir)/%) $(if $(SHARED_LIBS),$(DESTDIR)$(LDSO_PATHNAME),)
+ 

toolchain/musl/patches/400-Add-format-attribute-to-some-function-declarations.patch

@@ -0,0 +1,197 @@
+From e6683d001a95d7c3d4d992496f00f77e01fcd268 Mon Sep 17 00:00:00 2001
+From: Hauke Mehrtens <hauke@hauke-m.de>
+Date: Sun, 22 Nov 2015 15:04:23 +0100
+Subject: [PATCH v2] Add format attribute to some function declarations
+
+GCC and Clang are able to check the format arguments given to a
+function and warn the user if there is a error in the format arguments
+or if there is a potential uncontrolled format string security problem
+in the code. GCC does this automatically for some functions like
+printf(), but it is also possible to annotate other functions in a way
+that it will check them too. This feature is used by glibc for many
+functions. This patch adds the attribute to the some functions of musl
+expect for these functions where gcc automatically adds it.
+
+GCC automatically adds checks for these functions: printf, fprintf,
+sprintf, scanf, fscanf, sscanf, strftime, vprintf, vfprintf and
+vsprintf.
+
+The documentation from gcc is here:
+https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html
+
+The documentation from Clang is here:
+http://clang.llvm.org/docs/AttributeReference.html#format-gnu-format
+
+Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
+---
+ include/err.h      | 26 +++++++++++++++++---------
+ include/monetary.h | 12 ++++++++++--
+ include/stdio.h    | 29 ++++++++++++++++++++---------
+ include/syslog.h   | 12 ++++++++++--
+ 4 files changed, 57 insertions(+), 22 deletions(-)
+
+--- a/include/err.h
++++ b/include/err.h
+@@ -8,15 +8,23 @@
+ extern "C" {
+ #endif
+ 
+-void warn(const char *, ...);
+-void vwarn(const char *, va_list);
+-void warnx(const char *, ...);
+-void vwarnx(const char *, va_list);
++#if __GNUC__ >= 3
++#define __fp(x, y) __attribute__ ((__format__ (__printf__, x, y)))
++#else
++#define __fp(x, y)
++#endif
++
++void warn(const char *, ...) __fp(1, 2);
++void vwarn(const char *, va_list) __fp(1, 0);
++void warnx(const char *, ...) __fp(1, 2);
++void vwarnx(const char *, va_list) __fp(1, 0);
++
++_Noreturn void err(int, const char *, ...) __fp(2, 3);
++_Noreturn void verr(int, const char *, va_list) __fp(2, 0);
++_Noreturn void errx(int, const char *, ...) __fp(2, 3);
++_Noreturn void verrx(int, const char *, va_list) __fp(2, 0);
+ 
+-_Noreturn void err(int, const char *, ...);
+-_Noreturn void verr(int, const char *, va_list);
+-_Noreturn void errx(int, const char *, ...);
+-_Noreturn void verrx(int, const char *, va_list);
++#undef __fp
+ 
+ #ifdef __cplusplus
+ }
+--- a/include/monetary.h
++++ b/include/monetary.h
+@@ -13,8 +13,16 @@ extern "C" {
+ 
+ #include <bits/alltypes.h>
+ 
+-ssize_t strfmon(char *__restrict, size_t, const char *__restrict, ...);
+-ssize_t strfmon_l(char *__restrict, size_t, locale_t, const char *__restrict, ...);
++#if __GNUC__ >= 3
++#define __fsfm(x, y) __attribute__ ((__format__ (__strfmon__, x, y)))
++#else
++#define __fsfm(x, y)
++#endif
++
++ssize_t strfmon(char *__restrict, size_t, const char *__restrict, ...) __fsfm(3, 4);
++ssize_t strfmon_l(char *__restrict, size_t, locale_t, const char *__restrict, ...) __fsfm(4, 5);
++
++#undef __fsfm
+ 
+ #ifdef __cplusplus
+ }
+--- a/include/stdio.h
++++ b/include/stdio.h
+@@ -25,6 +25,14 @@ extern "C" {
+ 
+ #include <bits/alltypes.h>
+ 
++#if __GNUC__ >= 3
++#define __fp(x, y) __attribute__ ((__format__ (__printf__, x, y)))
++#define __fs(x, y) __attribute__ ((__format__ (__scanf__, x, y)))
++#else
++#define __fp(x, y)
++#define __fs(x, y)
++#endif
++
+ #ifdef __cplusplus
+ #define NULL 0L
+ #else
+@@ -107,19 +115,19 @@ int puts(const char *);
+ int printf(const char *__restrict, ...);
+ int fprintf(FILE *__restrict, const char *__restrict, ...);
+ int sprintf(char *__restrict, const char *__restrict, ...);
+-int snprintf(char *__restrict, size_t, const char *__restrict, ...);
++int snprintf(char *__restrict, size_t, const char *__restrict, ...) __fp(3, 4);
+ 
+ int vprintf(const char *__restrict, __isoc_va_list);
+ int vfprintf(FILE *__restrict, const char *__restrict, __isoc_va_list);
+ int vsprintf(char *__restrict, const char *__restrict, __isoc_va_list);
+-int vsnprintf(char *__restrict, size_t, const char *__restrict, __isoc_va_list);
++int vsnprintf(char *__restrict, size_t, const char *__restrict, __isoc_va_list) __fp(3, 0);
+ 
+ int scanf(const char *__restrict, ...);
+ int fscanf(FILE *__restrict, const char *__restrict, ...);
+ int sscanf(const char *__restrict, const char *__restrict, ...);
+-int vscanf(const char *__restrict, __isoc_va_list);
+-int vfscanf(FILE *__restrict, const char *__restrict, __isoc_va_list);
+-int vsscanf(const char *__restrict, const char *__restrict, __isoc_va_list);
++int vscanf(const char *__restrict, __isoc_va_list) __fs(1, 0);
++int vfscanf(FILE *__restrict, const char *__restrict, __isoc_va_list) __fs(2, 0);
++int vsscanf(const char *__restrict, const char *__restrict, __isoc_va_list) __fs(2, 0);
+ 
+ void perror(const char *);
+ 
+@@ -140,8 +148,8 @@ int pclose(FILE *);
+ int fileno(FILE *);
+ int fseeko(FILE *, off_t, int);
+ off_t ftello(FILE *);
+-int dprintf(int, const char *__restrict, ...);
+-int vdprintf(int, const char *__restrict, __isoc_va_list);
++int dprintf(int, const char *__restrict, ...) __fp(2, 3);
++int vdprintf(int, const char *__restrict, __isoc_va_list) __fp(2, 0);
+ void flockfile(FILE *);
+ int ftrylockfile(FILE *);
+ void funlockfile(FILE *);
+@@ -180,8 +188,8 @@ int fileno_unlocked(FILE *);
+ int getw(FILE *);
+ int putw(int, FILE *);
+ char *fgetln(FILE *, size_t *);
+-int asprintf(char **, const char *, ...);
+-int vasprintf(char **, const char *, __isoc_va_list);
++int asprintf(char **, const char *, ...) __fp(2, 3);
++int vasprintf(char **, const char *, __isoc_va_list) __fp(2, 0);
+ #endif
+ 
+ #ifdef _GNU_SOURCE
+@@ -203,6 +211,9 @@ typedef struct _IO_cookie_io_functions_t
+ FILE *fopencookie(void *, const char *, cookie_io_functions_t);
+ #endif
+ 
++#undef __fp
++#undef __fs
++
+ #if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE)
+ #define tmpfile64 tmpfile
+ #define fopen64 fopen
+--- a/include/syslog.h
++++ b/include/syslog.h
+@@ -56,16 +56,22 @@ extern "C" {
+ #define LOG_NOWAIT 0x10
+ #define LOG_PERROR 0x20
+ 
++#if __GNUC__ >= 3
++#define __fp(x, y) __attribute__ ((__format__ (__printf__, x, y)))
++#else
++#define __fp(x, y)
++#endif
++
+ void closelog (void);
+ void openlog (const char *, int, int);
+ int setlogmask (int);
+-void syslog (int, const char *, ...);
++void syslog (int, const char *, ...) __fp(2, 3);
+ 
+ #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)
+ #define _PATH_LOG "/dev/log"
+ #define __NEED_va_list
+ #include <bits/alltypes.h>
+-void vsyslog (int, const char *, va_list);
++void vsyslog (int, const char *, va_list) __fp(2, 0);
+ #if defined(SYSLOG_NAMES)
+ #define	INTERNAL_NOPRI 0x10
+ #define	INTERNAL_MARK (LOG_NFACILITIES<<3)
+@@ -93,6 +99,8 @@ typedef struct {
+ #endif
+ #endif
+ 
++#undef __fp
++
+ #ifdef __cplusplus
+ }
+ #endif

toolchain/musl/patches/500-0002-don-t-use-libc.threads_minus_1-as-relaxed-atomic-for.patch

@@ -0,0 +1,69 @@
+From e01b5939b38aea5ecbe41670643199825874b26c Mon Sep 17 00:00:00 2001
+From: Rich Felker <dalias@aerifal.cx>
+Date: Thu, 21 May 2020 23:32:45 -0400
+Subject: [PATCH 2/4] don't use libc.threads_minus_1 as relaxed atomic for
+ skipping locks
+
+after all but the last thread exits, the next thread to observe
+libc.threads_minus_1==0 and conclude that it can skip locking fails to
+synchronize with any changes to memory that were made by the
+last-exiting thread. this can produce data races.
+
+on some archs, at least x86, memory synchronization is unlikely to be
+a problem; however, with the inline locks in malloc, skipping the lock
+also eliminated the compiler barrier, and caused code that needed to
+re-check chunk in-use bits after obtaining the lock to reuse a stale
+value, possibly from before the process became single-threaded. this
+in turn produced corruption of the heap state.
+
+some uses of libc.threads_minus_1 remain, especially for allocation of
+new TLS in the dynamic linker; otherwise, it could be removed
+entirely. it's made non-volatile to reflect that the remaining
+accesses are only made under lock on the thread list.
+
+instead of libc.threads_minus_1, libc.threaded is now used for
+skipping locks. the difference is that libc.threaded is permanently
+true once an additional thread has been created. this will produce
+some performance regression in processes that are mostly
+single-threaded but occasionally creating threads. in the future it
+may be possible to bring back the full lock-skipping, but more care
+needs to be taken to produce a safe design.
+---
+ src/internal/libc.h | 2 +-
+ src/malloc/malloc.c | 2 +-
+ src/thread/__lock.c | 2 +-
+ 3 files changed, 3 insertions(+), 3 deletions(-)
+
+--- a/src/internal/libc.h
++++ b/src/internal/libc.h
+@@ -21,7 +21,7 @@ struct __libc {
+ 	int can_do_threads;
+ 	int threaded;
+ 	int secure;
+-	volatile int threads_minus_1;
++	int threads_minus_1;
+ 	size_t *auxv;
+ 	struct tls_module *tls_head;
+ 	size_t tls_size, tls_align, tls_cnt;
+--- a/src/malloc/malloc.c
++++ b/src/malloc/malloc.c
+@@ -26,7 +26,7 @@ int __malloc_replaced;
+ 
+ static inline void lock(volatile int *lk)
+ {
+-	if (libc.threads_minus_1)
++	if (libc.threaded)
+ 		while(a_swap(lk, 1)) __wait(lk, lk+1, 1, 1);
+ }
+ 
+--- a/src/thread/__lock.c
++++ b/src/thread/__lock.c
+@@ -18,7 +18,7 @@
+ 
+ void __lock(volatile int *l)
+ {
+-	if (!libc.threads_minus_1) return;
++	if (!libc.threaded) return;
+ 	/* fast path: INT_MIN for the lock, +1 for the congestion */
+ 	int current = a_cas(l, 0, INT_MIN + 1);
+ 	if (!current) return;

toolchain/musl/patches/700-wcsnrtombs-cve-2020-28928.diff

@@ -0,0 +1,65 @@
+diff --git a/src/multibyte/wcsnrtombs.c b/src/multibyte/wcsnrtombs.c
+index 676932b5..95e25e70 100644
+--- a/src/multibyte/wcsnrtombs.c
++++ b/src/multibyte/wcsnrtombs.c
+@@ -1,41 +1,33 @@
+ #include <wchar.h>
++#include <limits.h>
++#include <string.h>
+ 
+ size_t wcsnrtombs(char *restrict dst, const wchar_t **restrict wcs, size_t wn, size_t n, mbstate_t *restrict st)
+ {
+-	size_t l, cnt=0, n2;
+-	char *s, buf[256];
+ 	const wchar_t *ws = *wcs;
+-	const wchar_t *tmp_ws;
+-
+-	if (!dst) s = buf, n = sizeof buf;
+-	else s = dst;
+-
+-	while ( ws && n && ( (n2=wn)>=n || n2>32 ) ) {
+-		if (n2>=n) n2=n;
+-		tmp_ws = ws;
+-		l = wcsrtombs(s, &ws, n2, 0);
+-		if (!(l+1)) {
+-			cnt = l;
+-			n = 0;
++	size_t cnt = 0;
++	if (!dst) n=0;
++	while (ws && wn) {
++		char tmp[MB_LEN_MAX];
++		size_t l = wcrtomb(n<MB_LEN_MAX ? tmp : dst, *ws, 0);
++		if (l==-1) {
++			cnt = -1;
+ 			break;
+ 		}
+-		if (s != buf) {
+-			s += l;
++		if (dst) {
++			if (n<MB_LEN_MAX) {
++				if (l>n) break;
++				memcpy(dst, tmp, l);
++			}
++			dst += l;
+ 			n -= l;
+ 		}
+-		wn = ws ? wn - (ws - tmp_ws) : 0;
+-		cnt += l;
+-	}
+-	if (ws) while (n && wn) {
+-		l = wcrtomb(s, *ws, 0);
+-		if ((l+1)<=1) {
+-			if (!l) ws = 0;
+-			else cnt = l;
++		if (!*ws) {
++			ws = 0;
+ 			break;
+ 		}
+-		ws++; wn--;
+-		/* safe - this loop runs fewer than sizeof(buf) times */
+-		s+=l; n-=l;
++		ws++;
++		wn--;
+ 		cnt += l;
+ 	}
+ 	if (dst) *wcs = ws;

toolchain/musl/patches/900-iconv_size_hack.patch

@@ -0,0 +1,100 @@
+--- a/src/locale/iconv.c
++++ b/src/locale/iconv.c
+@@ -48,6 +48,7 @@ static const unsigned char charmaps[] =
+ "utf16\0\0\312"
+ "ucs4\0utf32\0\0\313"
+ "ucs2\0\0\314"
++#ifdef FULL_ICONV
+ "eucjp\0\0\320"
+ "shiftjis\0sjis\0\0\321"
+ "iso2022jp\0\0\322"
+@@ -56,6 +57,7 @@ static const unsigned char charmaps[] =
+ "gb2312\0\0\332"
+ "big5\0bigfive\0cp950\0big5hkscs\0\0\340"
+ "euckr\0ksc5601\0ksx1001\0cp949\0\0\350"
++#endif
+ #include "codepages.h"
+ ;
+ 
+@@ -66,6 +68,7 @@ static const unsigned short legacy_chars
+ #include "legacychars.h"
+ };
+ 
++#ifdef FULL_ICONV
+ static const unsigned short jis0208[84][94] = {
+ #include "jis0208.h"
+ };
+@@ -85,6 +88,7 @@ static const unsigned short hkscs[] = {
+ static const unsigned short ksc[93][94] = {
+ #include "ksc.h"
+ };
++#endif
+ 
+ static const unsigned short rev_jis[] = {
+ #include "revjis.h"
+@@ -205,6 +209,7 @@ static unsigned legacy_map(const unsigne
+ 	return x < 256 ? x : legacy_chars[x-256];
+ }
+ 
++#ifdef FULL_ICONV
+ static unsigned uni_to_jis(unsigned c)
+ {
+ 	unsigned nel = sizeof rev_jis / sizeof *rev_jis;
+@@ -223,6 +228,7 @@ static unsigned uni_to_jis(unsigned c)
+ 		}
+ 	}
+ }
++#endif
+ 
+ size_t iconv(iconv_t cd, char **restrict in, size_t *restrict inb, char **restrict out, size_t *restrict outb)
+ {
+@@ -319,6 +325,7 @@ size_t iconv(iconv_t cd, char **restrict
+ 			}
+ 			type = scd->state;
+ 			continue;
++#ifdef FULL_ICONV
+ 		case SHIFT_JIS:
+ 			if (c < 128) break;
+ 			if (c-0xa1 <= 0xdf-0xa1) {
+@@ -518,6 +525,7 @@ size_t iconv(iconv_t cd, char **restrict
+ 			c = ksc[c][d];
+ 			if (!c) goto ilseq;
+ 			break;
++#endif
+ 		default:
+ 			if (!c) break;
+ 			c = legacy_map(map, c);
+@@ -559,6 +567,7 @@ size_t iconv(iconv_t cd, char **restrict
+ 				}
+ 			}
+ 			goto subst;
++#ifdef FULL_ICONV
+ 		case SHIFT_JIS:
+ 			if (c < 128) goto revout;
+ 			if (c == 0xa5) {
+@@ -632,6 +641,7 @@ size_t iconv(iconv_t cd, char **restrict
+ 			*(*out)++ = 'B';
+ 			*outb -= 8;
+ 			break;
++#endif
+ 		case UCS2:
+ 			totype = UCS2BE;
+ 		case UCS2BE:
+--- a/src/locale/codepages.h
++++ b/src/locale/codepages.h
+@@ -129,6 +129,7 @@
+ "\340\204\43\316\100\344\34\144\316\71\350\244\243\316\72\354\264\343\316\73"
+ "\21\361\44\317\74\364\30\145\17\124\146\345\243\317\76\374\134\304\327\77"
+ 
++#ifdef FULL_ICONV
+ "cp1250\0"
+ "windows1250\0"
+ "\0\40"
+@@ -239,6 +240,7 @@
+ "\20\105\163\330\64\324\324\145\315\65\330\144\243\315\66\334\334\145\330\67"
+ "\340\204\43\316\100\344\224\143\316\71\350\244\243\316\72\205\265\343\316\73"
+ "\21\305\203\330\74\364\330\145\317\75\370\344\243\317\76\374\340\65\362\77"
++#endif
+ 
+ "koi8r\0"
+ "\0\40"

toolchain/musl/patches/901-crypt_size_hack.patch

@@ -0,0 +1,75 @@
+--- a/src/crypt/crypt_sha512.c
++++ b/src/crypt/crypt_sha512.c
+@@ -13,6 +13,17 @@
+ #include <string.h>
+ #include <stdint.h>
+ 
++#ifdef CRYPT_SIZE_HACK
++#include <errno.h>
++
++char *__crypt_sha512(const char *key, const char *setting, char *output)
++{
++	errno = ENOSYS;
++	return NULL;
++}
++
++#else
++
+ /* public domain sha512 implementation based on fips180-3 */
+ /* >=2^64 bits messages are not supported (about 2000 peta bytes) */
+ 
+@@ -369,3 +380,4 @@ char *__crypt_sha512(const char *key, co
+ 		return "*";
+ 	return p;
+ }
++#endif
+--- a/src/crypt/crypt_blowfish.c
++++ b/src/crypt/crypt_blowfish.c
+@@ -50,6 +50,17 @@
+ #include <string.h>
+ #include <stdint.h>
+ 
++#ifdef CRYPT_SIZE_HACK
++#include <errno.h>
++
++char *__crypt_blowfish(const char *key, const char *setting, char *output)
++{
++	errno = ENOSYS;
++	return NULL;
++}
++
++#else
++
+ typedef uint32_t BF_word;
+ typedef int32_t BF_word_signed;
+ 
+@@ -796,3 +807,4 @@ char *__crypt_blowfish(const char *key,
+ 
+ 	return "*";
+ }
++#endif
+--- a/src/crypt/crypt_sha256.c
++++ b/src/crypt/crypt_sha256.c
+@@ -13,6 +13,17 @@
+ #include <string.h>
+ #include <stdint.h>
+ 
++#ifdef CRYPT_SIZE_HACK
++#include <errno.h>
++
++char *__crypt_sha256(const char *key, const char *setting, char *output)
++{
++	errno = ENOSYS;
++	return NULL;
++}
++
++#else
++
+ /* public domain sha256 implementation based on fips180-3 */
+ 
+ struct sha256 {
+@@ -320,3 +331,4 @@ char *__crypt_sha256(const char *key, co
+ 		return "*";
+ 	return p;
+ }
++#endif