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-rw-r--r--stdlib/Makefile7
1 files changed, 7 insertions, 0 deletions
diff --git a/stdlib/Makefile b/stdlib/Makefile
index de3ecbbaa0..3cacb8b3f6 100644
--- a/stdlib/Makefile
+++ b/stdlib/Makefile
@@ -46,6 +46,7 @@ routines	:=							      \
 	drand48_r erand48_r lrand48_r nrand48_r mrand48_r jrand48_r	      \
 	srand48_r seed48_r lcong48_r					      \
 	drand48-iter							      \
+	strfromf strfromd strfroml					      \
 	strtol strtoul strtoll strtoull					      \
 	strtol_l strtoul_l strtoll_l strtoull_l				      \
 	strtof strtod strtold						      \
@@ -122,6 +123,12 @@ CFLAGS-fmtmsg.c = -fexceptions
 CFLAGS-strfmon.c = $(libio-mtsafe)
 CFLAGS-strfmon_l.c = $(libio-mtsafe)
 
+# The strfrom class of functions call __printf_fp in order to convert the
+# floating-point value to characters.  This requires the value of IO_MTSAFE_IO.
+CFLAGS-strfromd.c = $(libio-mtsafe)
+CFLAGS-strfromf.c = $(libio-mtsafe)
+CFLAGS-strfroml.c = $(libio-mtsafe)
+
 CFLAGS-tst-bsearch.c = $(stack-align-test-flags)
 CFLAGS-tst-qsort.c = $(stack-align-test-flags)
 CFLAGS-tst-makecontext.c += -funwind-tables