diff --git a/gnu/installer.scm b/gnu/installer.scm
index fe2841397e..3dd76707bf 100644
--- a/gnu/installer.scm
+++ b/gnu/installer.scm
@@ -39,6 +39,7 @@
   #:use-module (gnu packages ncurses)
   #:use-module (gnu packages package-management)
   #:use-module (gnu packages xorg)
+  #:use-module (gnu system locale)
   #:use-module (ice-9 match)
   #:use-module (srfi srfi-1)
   #:export (installer-program))
@@ -118,7 +119,7 @@ been performed at build time."
        (string-append #$file "/" #$name ".go")))
 
   (let* ((supported-locales #~(supported-locales->locales
-                               #$(local-file "installer/aux-files/SUPPORTED")))
+                               #+(glibc-supported-locales)))
          (iso-codes #~(string-append #$iso-codes "/share/iso-codes/json/"))
          (iso639-3 #~(string-append #$iso-codes "iso_639-3.json"))
          (iso639-5 #~(string-append #$iso-codes "iso_639-5.json"))
diff --git a/gnu/installer/aux-files/SUPPORTED b/gnu/installer/aux-files/SUPPORTED
deleted file mode 100644
index 24aae1e089..0000000000
--- a/gnu/installer/aux-files/SUPPORTED
+++ /dev/null
@@ -1,484 +0,0 @@
-aa_DJ.UTF-8 UTF-8
-aa_DJ ISO-8859-1
-aa_ER UTF-8
-aa_ER@saaho UTF-8
-aa_ET UTF-8
-af_ZA.UTF-8 UTF-8
-af_ZA ISO-8859-1
-agr_PE UTF-8
-ak_GH UTF-8
-am_ET UTF-8
-an_ES.UTF-8 UTF-8
-an_ES ISO-8859-15
-anp_IN UTF-8
-ar_AE.UTF-8 UTF-8
-ar_AE ISO-8859-6
-ar_BH.UTF-8 UTF-8
-ar_BH ISO-8859-6
-ar_DZ.UTF-8 UTF-8
-ar_DZ ISO-8859-6
-ar_EG.UTF-8 UTF-8
-ar_EG ISO-8859-6
-ar_IN UTF-8
-ar_IQ.UTF-8 UTF-8
-ar_IQ ISO-8859-6
-ar_JO.UTF-8 UTF-8
-ar_JO ISO-8859-6
-ar_KW.UTF-8 UTF-8
-ar_KW ISO-8859-6
-ar_LB.UTF-8 UTF-8
-ar_LB ISO-8859-6
-ar_LY.UTF-8 UTF-8
-ar_LY ISO-8859-6
-ar_MA.UTF-8 UTF-8
-ar_MA ISO-8859-6
-ar_OM.UTF-8 UTF-8
-ar_OM ISO-8859-6
-ar_QA.UTF-8 UTF-8
-ar_QA ISO-8859-6
-ar_SA.UTF-8 UTF-8
-ar_SA ISO-8859-6
-ar_SD.UTF-8 UTF-8
-ar_SD ISO-8859-6
-ar_SS UTF-8
-ar_SY.UTF-8 UTF-8
-ar_SY ISO-8859-6
-ar_TN.UTF-8 UTF-8
-ar_TN ISO-8859-6
-ar_YE.UTF-8 UTF-8
-ar_YE ISO-8859-6
-ayc_PE UTF-8
-az_AZ UTF-8
-az_IR UTF-8
-as_IN UTF-8
-ast_ES.UTF-8 UTF-8
-ast_ES ISO-8859-15
-be_BY.UTF-8 UTF-8
-be_BY CP1251
-be_BY@latin UTF-8
-bem_ZM UTF-8
-ber_DZ UTF-8
-ber_MA UTF-8
-bg_BG.UTF-8 UTF-8
-bg_BG CP1251
-bhb_IN.UTF-8 UTF-8
-bho_IN UTF-8
-bho_NP UTF-8
-bi_VU UTF-8
-bn_BD UTF-8
-bn_IN UTF-8
-bo_CN UTF-8
-bo_IN UTF-8
-br_FR.UTF-8 UTF-8
-br_FR ISO-8859-1
-br_FR@euro ISO-8859-15
-brx_IN UTF-8
-bs_BA.UTF-8 UTF-8
-bs_BA ISO-8859-2
-byn_ER UTF-8
-ca_AD.UTF-8 UTF-8
-ca_AD ISO-8859-15
-ca_ES.UTF-8 UTF-8
-ca_ES ISO-8859-1
-ca_ES@euro ISO-8859-15
-ca_ES@valencia UTF-8
-ca_FR.UTF-8 UTF-8
-ca_FR ISO-8859-15
-ca_IT.UTF-8 UTF-8
-ca_IT ISO-8859-15
-ce_RU UTF-8
-chr_US UTF-8
-cmn_TW UTF-8
-crh_UA UTF-8
-cs_CZ.UTF-8 UTF-8
-cs_CZ ISO-8859-2
-csb_PL UTF-8
-cv_RU UTF-8
-cy_GB.UTF-8 UTF-8
-cy_GB ISO-8859-14
-da_DK.UTF-8 UTF-8
-da_DK ISO-8859-1
-de_AT.UTF-8 UTF-8
-de_AT ISO-8859-1
-de_AT@euro ISO-8859-15
-de_BE.UTF-8 UTF-8
-de_BE ISO-8859-1
-de_BE@euro ISO-8859-15
-de_CH.UTF-8 UTF-8
-de_CH ISO-8859-1
-de_DE.UTF-8 UTF-8
-de_DE ISO-8859-1
-de_DE@euro ISO-8859-15
-de_IT.UTF-8 UTF-8
-de_IT ISO-8859-1
-de_LI.UTF-8 UTF-8
-de_LU.UTF-8 UTF-8
-de_LU ISO-8859-1
-de_LU@euro ISO-8859-15
-doi_IN UTF-8
-dv_MV UTF-8
-dz_BT UTF-8
-el_GR.UTF-8 UTF-8
-el_GR ISO-8859-7
-el_GR@euro ISO-8859-7
-el_CY.UTF-8 UTF-8
-el_CY ISO-8859-7
-en_AG UTF-8
-en_AU.UTF-8 UTF-8
-en_AU ISO-8859-1
-en_BW.UTF-8 UTF-8
-en_BW ISO-8859-1
-en_CA.UTF-8 UTF-8
-en_CA ISO-8859-1
-en_DK.UTF-8 UTF-8
-en_DK ISO-8859-1
-en_GB.UTF-8 UTF-8
-en_GB ISO-8859-1
-en_HK.UTF-8 UTF-8
-en_HK ISO-8859-1
-en_IE.UTF-8 UTF-8
-en_IE ISO-8859-1
-en_IE@euro ISO-8859-15
-en_IL UTF-8
-en_IN UTF-8
-en_NG UTF-8
-en_NZ.UTF-8 UTF-8
-en_NZ ISO-8859-1
-en_PH.UTF-8 UTF-8
-en_PH ISO-8859-1
-en_SC.UTF-8 UTF-8
-en_SG.UTF-8 UTF-8
-en_SG ISO-8859-1
-en_US.UTF-8 UTF-8
-en_US ISO-8859-1
-en_ZA.UTF-8 UTF-8
-en_ZA ISO-8859-1
-en_ZM UTF-8
-en_ZW.UTF-8 UTF-8
-en_ZW ISO-8859-1
-eo UTF-8
-es_AR.UTF-8 UTF-8
-es_AR ISO-8859-1
-es_BO.UTF-8 UTF-8
-es_BO ISO-8859-1
-es_CL.UTF-8 UTF-8
-es_CL ISO-8859-1
-es_CO.UTF-8 UTF-8
-es_CO ISO-8859-1
-es_CR.UTF-8 UTF-8
-es_CR ISO-8859-1
-es_CU UTF-8
-es_DO.UTF-8 UTF-8
-es_DO ISO-8859-1
-es_EC.UTF-8 UTF-8
-es_EC ISO-8859-1
-es_ES.UTF-8 UTF-8
-es_ES ISO-8859-1
-es_ES@euro ISO-8859-15
-es_GT.UTF-8 UTF-8
-es_GT ISO-8859-1
-es_HN.UTF-8 UTF-8
-es_HN ISO-8859-1
-es_MX.UTF-8 UTF-8
-es_MX ISO-8859-1
-es_NI.UTF-8 UTF-8
-es_NI ISO-8859-1
-es_PA.UTF-8 UTF-8
-es_PA ISO-8859-1
-es_PE.UTF-8 UTF-8
-es_PE ISO-8859-1
-es_PR.UTF-8 UTF-8
-es_PR ISO-8859-1
-es_PY.UTF-8 UTF-8
-es_PY ISO-8859-1
-es_SV.UTF-8 UTF-8
-es_SV ISO-8859-1
-es_US.UTF-8 UTF-8
-es_US ISO-8859-1
-es_UY.UTF-8 UTF-8
-es_UY ISO-8859-1
-es_VE.UTF-8 UTF-8
-es_VE ISO-8859-1
-et_EE.UTF-8 UTF-8
-et_EE ISO-8859-1
-et_EE.ISO-8859-15 ISO-8859-15
-eu_ES.UTF-8 UTF-8
-eu_ES ISO-8859-1
-eu_ES@euro ISO-8859-15
-fa_IR UTF-8
-ff_SN UTF-8
-fi_FI.UTF-8 UTF-8
-fi_FI ISO-8859-1
-fi_FI@euro ISO-8859-15
-fil_PH UTF-8
-fo_FO.UTF-8 UTF-8
-fo_FO ISO-8859-1
-fr_BE.UTF-8 UTF-8
-fr_BE ISO-8859-1
-fr_BE@euro ISO-8859-15
-fr_CA.UTF-8 UTF-8
-fr_CA ISO-8859-1
-fr_CH.UTF-8 UTF-8
-fr_CH ISO-8859-1
-fr_FR.UTF-8 UTF-8
-fr_FR ISO-8859-1
-fr_FR@euro ISO-8859-15
-fr_LU.UTF-8 UTF-8
-fr_LU ISO-8859-1
-fr_LU@euro ISO-8859-15
-fur_IT UTF-8
-fy_NL UTF-8
-fy_DE UTF-8
-ga_IE.UTF-8 UTF-8
-ga_IE ISO-8859-1
-ga_IE@euro ISO-8859-15
-gd_GB.UTF-8 UTF-8
-gd_GB ISO-8859-15
-gez_ER UTF-8
-gez_ER@abegede UTF-8
-gez_ET UTF-8
-gez_ET@abegede UTF-8
-gl_ES.UTF-8 UTF-8
-gl_ES ISO-8859-1
-gl_ES@euro ISO-8859-15
-gu_IN UTF-8
-gv_GB.UTF-8 UTF-8
-gv_GB ISO-8859-1
-ha_NG UTF-8
-hak_TW UTF-8
-he_IL.UTF-8 UTF-8
-he_IL ISO-8859-8
-hi_IN UTF-8
-hif_FJ UTF-8
-hne_IN UTF-8
-hr_HR.UTF-8 UTF-8
-hr_HR ISO-8859-2
-hsb_DE ISO-8859-2
-hsb_DE.UTF-8 UTF-8
-ht_HT UTF-8
-hu_HU.UTF-8 UTF-8
-hu_HU ISO-8859-2
-hy_AM UTF-8
-hy_AM.ARMSCII-8 ARMSCII-8
-ia_FR UTF-8
-id_ID.UTF-8 UTF-8
-id_ID ISO-8859-1
-ig_NG UTF-8
-ik_CA UTF-8
-is_IS.UTF-8 UTF-8
-is_IS ISO-8859-1
-it_CH.UTF-8 UTF-8
-it_CH ISO-8859-1
-it_IT.UTF-8 UTF-8
-it_IT ISO-8859-1
-it_IT@euro ISO-8859-15
-iu_CA UTF-8
-ja_JP.EUC-JP EUC-JP
-ja_JP.UTF-8 UTF-8
-ka_GE.UTF-8 UTF-8
-ka_GE GEORGIAN-PS
-kab_DZ UTF-8
-kk_KZ.UTF-8 UTF-8
-kk_KZ PT154
-kl_GL.UTF-8 UTF-8
-kl_GL ISO-8859-1
-km_KH UTF-8
-kn_IN UTF-8
-ko_KR.EUC-KR EUC-KR
-ko_KR.UTF-8 UTF-8
-kok_IN UTF-8
-ks_IN UTF-8
-ks_IN@devanagari UTF-8
-ku_TR.UTF-8 UTF-8
-ku_TR ISO-8859-9
-kw_GB.UTF-8 UTF-8
-kw_GB ISO-8859-1
-ky_KG UTF-8
-lb_LU UTF-8
-lg_UG.UTF-8 UTF-8
-lg_UG ISO-8859-10
-li_BE UTF-8
-li_NL UTF-8
-lij_IT UTF-8
-ln_CD UTF-8
-lo_LA UTF-8
-lt_LT.UTF-8 UTF-8
-lt_LT ISO-8859-13
-lv_LV.UTF-8 UTF-8
-lv_LV ISO-8859-13
-lzh_TW UTF-8
-mag_IN UTF-8
-mai_IN UTF-8
-mai_NP UTF-8
-mfe_MU UTF-8
-mg_MG.UTF-8 UTF-8
-mg_MG ISO-8859-15
-mhr_RU UTF-8
-mi_NZ.UTF-8 UTF-8
-mi_NZ ISO-8859-13
-miq_NI UTF-8
-mjw_IN UTF-8
-mk_MK.UTF-8 UTF-8
-mk_MK ISO-8859-5
-ml_IN UTF-8
-mn_MN UTF-8
-mni_IN UTF-8
-mr_IN UTF-8
-ms_MY.UTF-8 UTF-8
-ms_MY ISO-8859-1
-mt_MT.UTF-8 UTF-8
-mt_MT ISO-8859-3
-my_MM UTF-8
-nan_TW UTF-8
-nan_TW@latin UTF-8
-nb_NO.UTF-8 UTF-8
-nb_NO ISO-8859-1
-nds_DE UTF-8
-nds_NL UTF-8
-ne_NP UTF-8
-nhn_MX UTF-8
-niu_NU UTF-8
-niu_NZ UTF-8
-nl_AW UTF-8
-nl_BE.UTF-8 UTF-8
-nl_BE ISO-8859-1
-nl_BE@euro ISO-8859-15
-nl_NL.UTF-8 UTF-8
-nl_NL ISO-8859-1
-nl_NL@euro ISO-8859-15
-nn_NO.UTF-8 UTF-8
-nn_NO ISO-8859-1
-nr_ZA UTF-8
-nso_ZA UTF-8
-oc_FR.UTF-8 UTF-8
-oc_FR ISO-8859-1
-om_ET UTF-8
-om_KE.UTF-8 UTF-8
-om_KE ISO-8859-1
-or_IN UTF-8
-os_RU UTF-8
-pa_IN UTF-8
-pa_PK UTF-8
-pap_AW UTF-8
-pap_CW UTF-8
-pl_PL.UTF-8 UTF-8
-pl_PL ISO-8859-2
-ps_AF UTF-8
-pt_BR.UTF-8 UTF-8
-pt_BR ISO-8859-1
-pt_PT.UTF-8 UTF-8
-pt_PT ISO-8859-1
-pt_PT@euro ISO-8859-15
-quz_PE UTF-8
-raj_IN UTF-8
-ro_RO.UTF-8 UTF-8
-ro_RO ISO-8859-2
-ru_RU.KOI8-R KOI8-R
-ru_RU.UTF-8 UTF-8
-ru_RU ISO-8859-5
-ru_UA.UTF-8 UTF-8
-ru_UA KOI8-U
-rw_RW UTF-8
-sa_IN UTF-8
-sat_IN UTF-8
-sc_IT UTF-8
-sd_IN UTF-8
-sd_IN@devanagari UTF-8
-se_NO UTF-8
-sgs_LT UTF-8
-shn_MM UTF-8
-shs_CA UTF-8
-si_LK UTF-8
-sid_ET UTF-8
-sk_SK.UTF-8 UTF-8
-sk_SK ISO-8859-2
-sl_SI.UTF-8 UTF-8
-sl_SI ISO-8859-2
-sm_WS UTF-8
-so_DJ.UTF-8 UTF-8
-so_DJ ISO-8859-1
-so_ET UTF-8
-so_KE.UTF-8 UTF-8
-so_KE ISO-8859-1
-so_SO.UTF-8 UTF-8
-so_SO ISO-8859-1
-sq_AL.UTF-8 UTF-8
-sq_AL ISO-8859-1
-sq_MK UTF-8
-sr_ME UTF-8
-sr_RS UTF-8
-sr_RS@latin UTF-8
-ss_ZA UTF-8
-st_ZA.UTF-8 UTF-8
-st_ZA ISO-8859-1
-sv_FI.UTF-8 UTF-8
-sv_FI ISO-8859-1
-sv_FI@euro ISO-8859-15
-sv_SE.UTF-8 UTF-8
-sv_SE ISO-8859-1
-sw_KE UTF-8
-sw_TZ UTF-8
-szl_PL UTF-8
-ta_IN UTF-8
-ta_LK UTF-8
-tcy_IN.UTF-8 UTF-8
-te_IN UTF-8
-tg_TJ.UTF-8 UTF-8
-tg_TJ KOI8-T
-th_TH.UTF-8 UTF-8
-th_TH TIS-620
-the_NP UTF-8
-ti_ER UTF-8
-ti_ET UTF-8
-tig_ER UTF-8
-tk_TM UTF-8
-tl_PH.UTF-8 UTF-8
-tl_PH ISO-8859-1
-tn_ZA UTF-8
-to_TO UTF-8
-tpi_PG UTF-8
-tr_CY.UTF-8 UTF-8
-tr_CY ISO-8859-9
-tr_TR.UTF-8 UTF-8
-tr_TR ISO-8859-9
-ts_ZA UTF-8
-tt_RU UTF-8
-tt_RU@iqtelif UTF-8
-ug_CN UTF-8
-uk_UA.UTF-8 UTF-8
-uk_UA KOI8-U
-unm_US UTF-8
-ur_IN UTF-8
-ur_PK UTF-8
-uz_UZ.UTF-8 UTF-8
-uz_UZ ISO-8859-1
-uz_UZ@cyrillic UTF-8
-ve_ZA UTF-8
-vi_VN UTF-8
-wa_BE ISO-8859-1
-wa_BE@euro ISO-8859-15
-wa_BE.UTF-8 UTF-8
-wae_CH UTF-8
-wal_ET UTF-8
-wo_SN UTF-8
-xh_ZA.UTF-8 UTF-8
-xh_ZA ISO-8859-1
-yi_US.UTF-8 UTF-8
-yi_US CP1255
-yo_NG UTF-8
-yue_HK UTF-8
-yuw_PG UTF-8
-zh_CN.GB18030 GB18030
-zh_CN.GBK GBK
-zh_CN.UTF-8 UTF-8
-zh_CN GB2312
-zh_HK.UTF-8 UTF-8
-zh_HK BIG5-HKSCS
-zh_SG.UTF-8 UTF-8
-zh_SG.GBK GBK
-zh_SG GB2312
-zh_TW.EUC-TW EUC-TW
-zh_TW.UTF-8 UTF-8
-zh_TW BIG5
-zu_ZA.UTF-8 UTF-8
-zu_ZA ISO-8859-1
diff --git a/gnu/installer/locale.scm b/gnu/installer/locale.scm
index 284062a6e7..2ee5eecd96 100644
--- a/gnu/installer/locale.scm
+++ b/gnu/installer/locale.scm
@@ -62,12 +62,13 @@
 (define (locale-modifier assoc)
   (assoc-ref assoc 'modifier))
 
-(define (locale-string->locale string)
-  "Return the locale association list built from the parsing of STRING."
+(define* (locale-string->locale string #:optional codeset)
+  "Return the locale association list built from the parsing of STRING and,
+optionally, CODESET."
   (let ((matches (string-match locale-regexp string)))
     `((language  . ,(match:substring matches 1))
       (territory . ,(match:substring matches 3))
-      (codeset   . ,(match:substring matches 5))
+      (codeset   . ,(or codeset (match:substring matches 5)))
       (modifier  . ,(match:substring matches 7)))))
 
 (define (normalize-codeset codeset)
@@ -107,17 +108,12 @@
                    '())))))
 
 (define (supported-locales->locales supported-locales)
-  "Parse the SUPPORTED-LOCALES file from the glibc and return the matching
-list of LOCALE association lists."
- (call-with-input-file supported-locales
-    (lambda (port)
-      (let ((lines (read-lines port)))
-        (map (lambda (line)
-               (match (string-split line #\ )
-                 ((locale-string codeset)
-                  (let ((line-locale (locale-string->locale locale-string)))
-                    (assoc-set! line-locale 'codeset codeset)))))
-             lines)))))
+  "Given SUPPORTED-LOCALES, a file produced by 'glibc-supported-locales',
+return a list of locales where each locale is an alist."
+  (map (match-lambda
+         ((locale . codeset)
+          (locale-string->locale locale codeset)))
+       (call-with-input-file supported-locales read)))
 
 
 ;;;
diff --git a/gnu/local.mk b/gnu/local.mk
index 133293aad3..1b0298ec6f 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -629,8 +629,7 @@ endif
 
 installerdir = $(guilemoduledir)/%D%/installer
 dist_installer_DATA =				\
-  %D%/installer/aux-files/logo.txt	        \
-  %D%/installer/aux-files/SUPPORTED
+  %D%/installer/aux-files/logo.txt
 
 # Modules that do not need to be compiled.
 MODULES_NOT_COMPILED +=				\