diff options
Diffstat (limited to 'Makefile.flags')
-rw-r--r-- | Makefile.flags | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/Makefile.flags b/Makefile.flags index 58fcf33eb..c3ac5b458 100644 --- a/Makefile.flags +++ b/Makefile.flags | |||
@@ -57,6 +57,9 @@ CFLAGS += $(call cc-option,-falign-functions=1 -falign-jumps=1 -falign-labels=1 | |||
57 | # Defeat .eh_frame bloat (gcc 4.6.3 x86-32 defconfig: 20% smaller busybox binary): | 57 | # Defeat .eh_frame bloat (gcc 4.6.3 x86-32 defconfig: 20% smaller busybox binary): |
58 | CFLAGS += $(call cc-option,-fno-unwind-tables,) | 58 | CFLAGS += $(call cc-option,-fno-unwind-tables,) |
59 | CFLAGS += $(call cc-option,-fno-asynchronous-unwind-tables,) | 59 | CFLAGS += $(call cc-option,-fno-asynchronous-unwind-tables,) |
60 | # No automatic printf->puts,putchar conversions | ||
61 | # (try disabling this and comparing assembly, it's instructive) | ||
62 | CFLAGS += $(call cc-option,-fno-builtin-printf,) | ||
60 | 63 | ||
61 | # FIXME: These warnings are at least partially to be concerned about and should | 64 | # FIXME: These warnings are at least partially to be concerned about and should |
62 | # be fixed.. | 65 | # be fixed.. |
@@ -134,15 +137,19 @@ else | |||
134 | LDLIBS += m | 137 | LDLIBS += m |
135 | endif | 138 | endif |
136 | 139 | ||
140 | # libpam may use libpthread, libdl and/or libaudit. | ||
141 | # On some platforms that requires an explicit -lpthread, -ldl, -laudit. | ||
142 | # However, on *other platforms* it fails when some of those flags | ||
143 | # given needlessly. On some systems, crypt needs pthread. | ||
144 | # | ||
145 | # I even had a system where a runtime test for pthread | ||
146 | # (similar to CRYPT_AVAILABLE test above) was not reliable. | ||
147 | # | ||
148 | # Do not propagate this mess by adding libraries to CONFIG_PAM/CRYPT_AVAILABLE blocks. | ||
149 | # Add libraries you need to CONFIG_EXTRA_LDLIBS instead. | ||
150 | |||
137 | ifeq ($(CONFIG_PAM),y) | 151 | ifeq ($(CONFIG_PAM),y) |
138 | # libpam uses libpthread, so for static builds busybox must be linked to | 152 | LDLIBS += pam pam_misc |
139 | # libpthread. On some platforms that requires an explicit -lpthread, so | ||
140 | # it should be in LDLIBS. For non-static builds, scripts/trylink will | ||
141 | # take care of removing -lpthread if possible. (Not bothering to check | ||
142 | # CONFIG_STATIC because even in a non-static build it could be that the | ||
143 | # only libpam available is libpam.a, so -lpthread could still be | ||
144 | # needed.) | ||
145 | LDLIBS += pam pam_misc pthread | ||
146 | endif | 153 | endif |
147 | 154 | ||
148 | ifeq ($(CONFIG_SELINUX),y) | 155 | ifeq ($(CONFIG_SELINUX),y) |